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Minicourse on disorder and dynamics in strongly correlated materials

Written by Elisa Pomari on May 15th, 2024. Posted in

November 4-8, 2024

São Paulo, Brazil

IFT-UNESP Auditorium

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A physical description of strongly correlated materials is one of the biggest challenges in theoretical and experimental condensed matter research. An obstacle in describing quantum phases and quantum phase transitions in real materials is the ubiquitous inhomogeneities that enter as a quenched random variable (disorder) in the system. Examples where disorder effects play a major role are the low-temperature physics of frustrated magnets or the electronic nematic phases of iron pnictides and cuprates. On the other hand, there is a growing interest in the description and the control of time-dependent properties of quantum materials. Examples are the use of ultrafast spectroscopy as a tool to control quantum phases of matter, and the development of cold atoms as platforms to study out-of-equilibrium dynamics.

This one-week course is designed to provide graduate (and, perhaps, a few senior undergraduate) students in physics with an introduction to disorder and dynamical properties in condensed matter systems. In addition, we will have space for participants to present their research in poster sessions.

Requirements:

A graduate course on quantum mechanics and statistical physics.

Participants are required to bring their laptops to the lectures involving numerical analysis.

There is no registration fee and limited funds are available for local expenses.

Organizers:

  • José Hoyos (IFSC-USP, Brazil)
  • Rui Aquino (ICTP-SAIFR/IFT-UNESP, Brazil)
  • W. Joe Meese (University of Illinois at Urbana-Champaign, USA)

List of Participants: Updated on October 15, 2024.

 

Announcement:

Click HERE for online application

Application deadline: September 15, 2024

Lecturers

Lecturers:

  • José Hoyos (IFSC-USP, Brazil) and W. Joe Meese (University of Illinois at Urbana-Champaign, USA): Phase transitions in disordered quantum systems.
  • Victor Luiz Quito (IFSC-USP, Brazil): Floquet engineering quantum systems.
  • Fernando Iemini (UFF, Brazil): Dynamics in quantum many-body systems.

Lectures Summary

New topics can be accommodated if time permits and/or upon request.

Posters

Participants MUST BRING THE BANNER PRINTED.

For details about the poster presentation please look at the correspondent Additional Information topic.

Registration

Announcement:

Click HERE for online application

Application deadline: September 15, 2024

Program

Minicourse Program: PDF

Additional Information

How to reach the Institute: The school will be held at ICTP South American Institute, located at IFT-UNESP, which is across the street from a major bus and subway terminal (Terminal Barra Funda). The address which is closer to the entrance of the IFT-UNESP building is R. Jornalista Aloysio Biondi, 120 – Barra Funda, São Paulo. The easiest way to reach us is by subway or bus, please find instructions here.

Poster presentation: Participants who are presenting a poster MUST BRING A PRINTED BANNER . The banner size should be at most 1 m (width) x 1,5 m (length). We do not accept A4 or A3 paper. Click here to see what a banner looks like: http://designplast.ind.br/produtos/detalhe/impressao-digital/banner/119/9

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Minicourse on disorder and dynamics in strongly correlated materials

III LASF4RI for HECAP Symposium: Update of the Strategic Plan

Written by Elisa Pomari on April 25th, 2024. Posted in

August 26 – 29, 2024

ICTP-SAIFR, São Paulo, Brazil

Venue: Principia Institute

Zoom ID: 842 5530 7165
Password: strategic

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It is widely recognized that large-scale long-term science collaborations deliver lasting benefits to participating nations. Most of these collaborations require large infrastructures. As is done in Europe and the US, the coordination of resources for these large infrastructures among different countries in Latin America is desirable in order to optimize efforts. With the support of many countries and institutions, the initiative for a Latin American Strategy Forum for Research Infrastructure (LASF4RI) was presented at the Meeting of the Iberoamerican Ministers for Science and Technology in 2018, and was included in the final declaration that was ratified at a subsequent meeting of the Heads of State. Within the framework of the Simposio Latino Americano de Física de Altas Energias (SILAFAE) an effort was initiated to formulate a strategy for large collaborations in the region in the areas of  Particle Physics and Cosmology.

A first Strategy Plan for High Energy, Cosmology and Astroparticle Physics (HECAP) was concluded in 2020 after a process where 40 White Papers were submitted by the community and presented at the “II Latin American Strategy Forum for Research Infrastructure: an Open Symposium for HECAP” at ICTP-SAIFR. A Physics Briefing Book was written by the Preparatory Group based on White Papers and served as the basis for the LASF4RI-HECAP Strategy Document that was endorsed in a letter by the High Level Strategy Group.  One of the outcomes of this process was the creation of the Latin American Association for High Energy, Cosmology and Astroparticle Physics (LAA-HECAP). All these documents are available at www.lasf4ri.org.

We are now in the process of an update of the Strategy Document taking into account the developments in the last 4 years. A call for new or updated White Papers was issued in November 2023 and they will be presented at this Symposium, with the participation of the Preparatory Group, High Level Strategy Group, Funding Agencies and representatives of similar efforts around the globe.

The participation of the Latin American HECAP community is essential for the success of this process.

There is no registration fee and limited funds are available for local expenses.

The submitted White Papers can be found here.

Organizers:

  • Marta Losada (New York University Abu Dhabi, UAE)
  • Diana López Nacir (University of Buenos Aires, Argentina)
  • Fernando Quevedo (University of Cambridge, UK)
  • Rogério Rosenfeld (IFT-UNESP)

List of participants: Updated on August 28, 2024.

Survey: Here 

 

Invited Speakers

  • Luciano Maiani – chair of the LASF4RI High Level Strategy Group
  • Ricardo Galvão – Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq, Brazil)
  • Sylvio Canuto – Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP, Brazil)
  • Rafael Anta – Banco Interamericano de Desenvolvimento (BID)
  • Sharapyia Kakimova – Agencia Nacional de Investigación y Desarrollo (ANID, Chile)
  • Ana Patricia Torres –  Consejo Nacional de Humanidades, Ciencias y Tecnología (CONAHCYT, Mexico)
  • Federico Sanchez – Comisión Nacional de Energía Atómica (CNEA, Argentina)
  • Enrique Pazos – Secretaría Nacional de Ciencia y Tecnologia (SENACYT, Guatemala)
  • Martijn Mulders (CERN)
  • Yifang Wang (Institute of High Energy Physics – Beijing)
  • Christophe Grojean (DESY & CERN)
  • Hitoshi Murayama (University of Caligfornia – Berkeley)
  • Paris Sphicas – chair of European Committee for Future Accelerators
  • Kétévi Assamagan (Brookhaven National Laboratory)
  • Marta Losada (New York University Abu Dhabi)

Registration

Announcement:

Registration is now closed.

Program

 The program might be changed.

 

Videos and Files

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III LASF4RI for HECAP Symposium Update of the Strategic Plan

 

Additional Information

Attention! Some participants in ICTP-SAIFR activities have received email from fake travel agencies asking for credit card information. All communication with participants will be made by ICTP-SAIFR staff using an e-mail “@ictp-saifr.org”. We will not send any mailings about accommodation that require a credit card number or any sort of deposit.

BOARDING PASS: All participants, whose travel has been provided or will be reimbursed by ICTP-SAIFR, should bring the boarding pass  upon registration. The return boarding pass (PDF, if online check-in, scan or picture, if physical) should be sent to secretary@ictp-saifr.org by e-mail.

COVID-19: Brazilians and foreigners no longer have to present proof of vaccination before entering the country.

Visa information: Nationals from several countries in Latin America and Europe are exempt from tourist visa. Nationals from Australia, Canada and USA are exempt from tourist visa until April 10, 2025. Please check here which nationals need a tourist visa to enter Brazil.

Accommodation: Participants, whose accommodation will be provided by the institute, will stay at The Universe Flat. Hotel recommendations are available here.

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III LASF4RI for HECAP Symposium: Update of the Strategic Plan

Minicourse on Light from the Neutrinos

Written by Elisa Pomari on April 25th, 2024. Posted in

May 9-14, 2024

ICTP-SAIFR, São Paulo, Brazil

Venue: Principia Institute

Zoom ID: 863 5400 6323

Password: neutrinos

 

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Neutrinos are one of the most abundant known particles in the universe, yet the least understood ones. I will cover two main aspects in my lectures: (a) how neutrinos can shed light on new physics, and (b) how neutrinos can develop electromagnetic interactions (with light), while discussing the correlation between neutrino mass and neutrino magnetic moment, despite the fact that neutrinos in the Standard Model are immune to electromagnetic interactions.

These lectures are designed for graduate students of all levels who are interested in delving deeper into neutrino theory and phenomenology. We will explore recent advancements in neutrino model building, experimental anomalies, and neutrino astrophysics.

There is no registration.

Lecturer:

    • Sudip Jana (Max-Planck-Institut für Kernphysik, Heidelberg, Germany)

Organizer:

    • Chee Sheng Fong (UFABC, Brazil)
    • Yago Porto (UFABC, Brazil)

Program

Program:

Lecture 1: Light from the Neutrinos – Part 1

Lecture 2: Light from the Neutrinos – Part 2

Lecture 3: Light from the Neutrinos – Part 3

After each lecture, there will be time (~1 hour) for discussions on relevant topics in neutrino physics and astrophysics.

 

Photos

Minicourse on Light from the Neutrinos

Additional Information

How to reach the Principia Institute: The minicourse will be held at Principia Institute of the Institute for Theoretical Physics Foundation, located at Rua Pamplona, 145.

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Minicourse on Light from the Neutrinos

School on Water: From the Anomalies to the Biological and Technological Applications

Written by Elisa Pomari on April 17th, 2024. Posted in

September 2 – 7, 2024

São Paulo, Brazil

ICTP-SAIFR/IFT-UNESP

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We can all agree that a liquid that occupies 70 percent of Earth’s surface and two-thirds of our body is very important. Do we already know everything about water? Water has more than 70 thermodynamic, dynamic and structural anomalies and also shows new strange behavior upon analysis of the biological or material nanostructures. For instance, at nanoconfinement, water violates the hydrodynamic equations. Since water is present everywhere, understanding how the anomalies affect different systems is relevant. In this school, we explore the water anomalies starting from the basic ideas of phase transitions and critical phenomena, and show how they can be measured from scattering experiments and simulations of the nanoscale results.

There is no registration fee and limited funds are available for travel and local expenses.

Organizers:

  • Marcia Barbosa (UFRGS, Brazil)
  • Paola Gallo (Roma Tre University, Italy)

List of participants: Updated on September 03, 2024.

Survey: HERE

Lectures

Lecturers:

  • Gustavo Appignanesi (Universidad Nacional del Sur, Argentina): Hydrophobic and Hydrophilic Surfaces and Interfaces
  • Marcia Barbosa (UFRGS, Brazil):  Nanoconfined Water
  • Paola Gallo (Roma Tre University, Italy): Dynamics and Supercooled Water
  • Enrique Lomba (CSIC, Spain): Scattering and Structural Factor

Seminar by:

  • Mateus Kohler (UFSM, Brazil)
  • J. Rafael Bordin (UFPel, Brazil)

 

Registration

Announcement:

Application is now closed

Program

Poster session

  • Aline Oliveira Santos (Universidade Federal da Bahia ): Ab initio study of water-graphene interaction
  • Bruna de Moura (Universidade Federal de Santa Maria (UFSM)): Three-dimensional graphene decorated with iron nanoparticles filters for water defluoridation
  • Camila Raupp da Luz (UFRGS): Anomaly of the dielectric constant of ice
  • Davi Felipe Kray Silva (José Rafael Bordin): Computational Insights into Elastic Dumbbells: Thermodynamics with Extra Degrees of Freedom
  • Ezequiel Lorenzett (Universidade Federal do Rio Grande do Sul): Asymmetric graphene/ graphene oxide water confinement
  • Fernanda Leivas (UFRGs): Atmospheric Water Harvesting using Nanomaterials
  • Joao Victor Lemos Valle (UFBA): Accuracy of TIP4P/2005 and SPC/Fw Water Models
  • Nicolás Alfredo Loubet (INQUISUR – CONICET): Study Of Protein Hydration Water With The V4S Structural Index: Focus On Binding Site Description
  • Lucas Avila Pinheiro (Universidade Federal de Pelotas): CO2 Phase Behavior Across Isobars: A Computational Study with EPM2 and TraPPE Models
  • Patrick Ruam Bredow Côrtes (Universidade Federal de Pelotas): Influence of Water Structuring on Pollutant Adsorption on Carbon Nanotubes
  • Yan Araujo Santos da Campo (Federal University of Santa Maria (UFSM)): Water flow and desalination by graphene oxide nanoslits

Videos and Files

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School on Water - From the Anomalies to the Biological and Technological Applications

 

Additional Information

Attention! Some participants in ICTP-SAIFR activities have received email from fake travel agencies asking for credit card information. All communication with participants will be made by ICTP-SAIFR staff using an e-mail “@ictp-saifr.org”. We will not send any mailings about accommodation that require a credit card number or any sort of deposit.

BOARDING PASS: All participants, whose travel has been provided or will be reimbursed by ICTP-SAIFR, should bring the boarding pass  upon registration. The return boarding pass (PDF, if online check-in, scan or picture, if physical) should be sent to secretary@ictp-saifr.org by e-mail.

COVID-19: Brazilians and foreigners no longer have to present proof of vaccination before entering the country.

Visa information: Nationals from several countries in Latin America and Europe are exempt from tourist visa. Nationals from Australia, Canada and USA are exempt from tourist visa until April 10, 2025. Please check here which nationals need a tourist visa to enter Brazil.

Accommodation: Participants, whose accommodation will be provided by the institute, will stay at The Universe Flat. Hotel recommendations are available here.

How to reach the Institute: The first week of the school will be held at ICTP South American Institute, located at IFT-UNESP, which is across the street from a major bus and subway terminal (Terminal Barra Funda). The address which is closer to the entrance of the IFT-UNESP building is R. Jornalista Aloysio Biondi, 120 – Barra Funda, São Paulo. The easiest way to reach us is by subway or bus, please find instructions here.

Poster presentation: Participants who are presenting a poster MUST BRING A PRINTED BANNER . The banner size should be at most 1 m (width) x 1,5 m (length). We do not accept A4 or A3 paper. Click here to see what a banner looks like: http://designplast.ind.br/produtos/detalhe/impressao-digital/banner/119/9

 

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School on Water: From the Anomalies to the Biological and Technological Applications

School on Active Matter

Written by Elisa Pomari on April 13th, 2024. Posted in

September 30 – October 4, 2024

São Paulo, Brazil

ICTP-SAIFR/IFT-UNESP

Zoom ID: 826 3818 4873
Password: matter

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Active matter describes systems whose constituent elements consume energy locally in order to move or to exert mechanical forces. As such, active matter systems are intrinsically out of thermodynamic equilibrium. Examples include flocks or herds of animals, collections of cells, components of the cellular cytoskeleton and even artificial microswimmers. Active matter is a rapidly growing field involving diverse scientific communities in physics, biology, computational sciences, applied mathematics, chemistry, and engineering. Numerous applications of active matter are constantly arising in biological systems, smart materials, precision medicine, and robotics.

This school is intended for graduate students and researchers interested in the physics of active matter. The lectures will cover well-tested and successful theoretical approaches as well as a discussion of experimental results. To achieve this purpose, leading experts will present lectures on fundamental aspects of active matter and a pedagogical exposition of its recent trends.

Applicants are invited to submit abstracts for poster presentations.

There is no registration fee and limited funds are available for travel and local expenses.

Organizers:

  • Pablo de Castro (ICTP-SAIFR, Brazil)
  • Danilo Liarte (ICTP-SAIFR, Brazil)
  • Francisca Guzmán-Lastra (Universidad de Chile, Chile)
  • Leonardo Gregory Brunnet (UFRGS, Brazil)
  • Rodrigo Soto (Universidad de Chile, Chile)

List of Participants: Updated on Otctober 04, 2024.

Survey: Here

Lectures

Lecturers:

For computational exercises, desk computers will be available during the exercise sessions in a computer lab on the ground floor at the IFT-UNESP building. If you wish to use your own laptop, we recommend installing Anaconda/Python.

Special Presentation:

  • Antonio Romaguera (Universidade Federal Rural de Pernambuco, Brazil):  Active matter with Hexbugs robot toys: Experimental demonstration

Registration

Announcement:

Application is now closed

Program

Poster Sessions

Poster Session 1 (Monday, September 30):

  • Ahmed Elhady (Max Planck Institute of Animal Behavior / University of Konstanz): Mechanistic theory of social foraging
  • Ana Novaes Dias (UFMG): Mean Field Theory for a Vicseklike Model on a Lattice
  • Andrea Soledad Gotting (Physics Department, Institute of Sciences, National University of General Sarmiento, Argentina): Study of bacterial aggregation of Pseudomona Extremaustralis 2E-UNGS for bioremediation processes.
  • Antonio Romaguera (Universidade Federal Rural de Pernambuco / Departamento de Física): Multifractal fluctuations in zebrafish (Danio rerio) polarization time series
  • Bernardo Boatini (Institudo de Fisica da UFRGS): Wetting of Active Droplets
  • Constanza Rivas (Universidad de Concepción): Modeling early biofilm formation through multigenerational surface-sensing transmission on active particles
  • Davi Lazzari (Instituto de Física – UFRGS): Tuning collective actuation of active solids by optimizing activity localization
  • Emanuel Fortes Teixeira (Instituto de Física da Universidade Federal do Rio grande do Sul (UFRGS)): Segregation in binary mixture with differential contraction among active rings

Poster Session 2 (Tuesday, October 1):

  • Fernando Francisco Silva Filho (IF USP): Stochastic Thermodynamics and collective effects on 4-state molecular motors
  • Fidel Álvarez (Pontificia Universidad Católica de Chile): Growth Dynamics in a Mechanical Model of Cellular Colonies
  • FRANCISCO CAROL BONFIM LEAL (Universidade Federal Rural do Pernambuco): Avalanche dynamics of zebrafish schools: unveiling self-organization and phase transitions
  • Guillermo Fadic(Universidad de Chile): Phase diagram of bioconvection patterns formed by magnetotactic bacteria 
  • Ignacio Bordeu (Universidad de Chile): Modelling branching morphogenesis
  • Ignacio Peña Orellana (Pontificia Universidad Catolica de Valparaiso) and Javiera Navarro Pérez (Pontificia Universidad Catolica de Valparaiso): Characterization of MG1655 E.Coli bacterial chemotaxis navigation in a complex media
  • Italo Ignacio Salas (Universidad de Chile): Emerging double power-law through dynamical complex networks in motility-induced phase separation in Active Brownian Particles 
  • Joaquin Morales (Universidad de Chile): Collective fractional Brownian motion driven by spatiotemporal light gradients 

Poster Session 3 (Wednesday, October 2):

  • Jorge Mario Escobar Agudelo (UNESP-IFT): Correlated Disorder and Viscoelasticity of Soft Colloidal Gels
  • Kelly Aparecida Molica (Universidade Federal de Viçosa): Cell self-organization in culture: from chance to motility cell-induced gradients
  • Leonardo Leiva (Pontificia Universidad Católica): Yielding Transition in Active Systems 
  • Luiz Menon Junior (Pontifícia Universidade Católica do Rio de Janeiro): Random search in heterogeneous media
  • Marcos Pasa (Instituto de Física – UFRGS): Stokes Flow With Active Rings
  • Marina Palacio Fornero (Instituto de Física Enrique Gaviola – Facultad de Matematica, Astronomia, Física y Computación – Universidad Nacional de Córdoba): Human sperm dynamics under confinement 
  • Matheus Gomes (UFRPE): Exploring Dynamics of BEAM Robots in Complex Potentials Using 3D Printed Models 
  • Mayron González (Universidad de Chile): Complexity emerges in measures of the marking dynamics in football games
  • Yhony Mamani Arce (UNESP-IFT): Anomalous dynamic scaling of an active particle embedded in a smectic liquid crystal

Poster Session 4 (Thursday, October 3):

  • Michael Torres Ramirez (Universidade Federal do Ceará): Plateau-Rayleigh-like instability in interacting binary mixtures of active particles 
  • Nathan de Oliveira Silvano (Universidade do Estado do Rio de Janeiro): Emergent Gauge Symmetry in Active Brownian Particles
  • Nycholas Guedes Rufini (Universidade de São Paulo): Dynamics of the Vallis model for El Niño phenomenon with periodic perturbation
  • Opiyo Alphonce Ndolo (Pontificia Universidad Católica de Valparaiso, Chile): Quantitative analysis of Bacterial navigation and diffusion under hemodynamic conditions for bacteriotherapy application
  • Oscar Sebastian Garrido (Universidad de Chile): Collective Organization of Magnetotactic bacteria in a Droplet under External Magnetic Field
  • Pablo Pérez (Universidad de Chile): Coupled dynamics of density and polarization fields of active Brownian particles.
  • Paulo Casagrande Godolphim (Departamento de Fisica – Universidad de Chile): Mechanical Heterogeneity in Fish Embryos 
  • Rafael Dias Vilela (UFABC): Dynamics and sorting of run-and-tumble particles in fluid flows with transport barriers

Poster Session 5 (Friday, October 4):

  • Peter Marinko (University of Ljubljana, Ljubljana, Slovenia): Helically confined liquid crystal simulation
  • Renne Rodrigues Rosinelli Junior (Institute of Physics/ Univerty of Sao Paulo): Computational simulation of microscopic models for dilute biaxial nematic liquid crystals
  • RUAN VICTOR ALMEIDA QUIRINO (universidade federal rural de pernambuco): Calculation of the Lyapunov exponent of the dynamics of robots in non-integrable domains 
  • Sebastián de la Maza Rodríguez (Universidad de Chile): Aggregation processes in layered environments
  • Vinícius Bayne Müller (UFRGS): Phase transitions of epidemic spreading in complex networks
  • Alphonce Opiyo (Pontificia Universidad Católica de Valparaíso): Quantitative analysis of Bacterial navigation and diffusion under hemodynamic conditions for bacteriotherapy application
  • Yago Pontual (Universidade Federal Rural de Pernambuco): Topological arrangement of self-propelled particles in confined potentials 

 

All abstracts: HERE

Videos and Files

Slides: Professor Francesco Ginelli

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School on Active Matter - 2024

Additional Information

Attention! Some participants in ICTP-SAIFR activities have received email from fake travel agencies asking for credit card information. All communication with participants will be made by ICTP-SAIFR staff using an e-mail “@ictp-saifr.org”. We will not send any mailings about accommodation that require a credit card number or any sort of deposit.

BOARDING PASS: All participants, whose travel has been provided or will be reimbursed by ICTP-SAIFR, should bring the boarding pass  upon registration. The return boarding pass (PDF, if online check-in, scan or picture, if physical) should be sent to secretary@ictp-saifr.org by e-mail.

COVID-19: Brazilians and foreigners no longer have to present proof of vaccination before entering the country.

Visa information: Nationals from several countries in Latin America and Europe are exempt from tourist visa. Nationals from Australia, Canada and USA are exempt from tourist visa until April 10, 2025. Please check here which nationals need a tourist visa to enter Brazil.

Accommodation: Participants, whose accommodation will be provided by the institute, will stay at The Universe Flat. Hotel recommendations are available here.

How to reach the Institute: The first week of the school will be held at ICTP South American Institute, located at IFT-UNESP, which is across the street from a major bus and subway terminal (Terminal Barra Funda). The address which is closer to the entrance of the IFT-UNESP building is R. Jornalista Aloysio Biondi, 120 – Barra Funda, São Paulo. The easiest way to reach us is by subway or bus, please find instructions here.

Poster presentation: Participants who are presenting a poster MUST BRING A PRINTED BANNER . The banner size should be at most 1 m (width) x 1,5 m (length). We do not accept A4 or A3 paper. Click here to see what a banner looks like: http://designplast.ind.br/produtos/detalhe/impressao-digital/banner/119/9

 

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School on Active Matter

Minicourse on fluid-dynamical models of heavy ion collisions

Written by Nathan on April 12th, 2024. Posted in

April 15-16, 2024

São Paulo, Brazil

ICTP-SAIFR/IFT-UNESP

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Relativistic hydrodynamics plays a fundamental role in the theoretical description of the hot and dense nuclear matter produced in heavy ion collisions. The goal of this minicourse is to discuss the fundamental assumptions and ingredients of such fluid-dynamical models, as well as future challenges in this field.

There is no registration.

Lecturer:

    • Gabriel Denicol (Fluminense Federal University, Brazil)

Organizer:

    • Ana Mizher (IFT-UNESP, Brazil)

 

Program

Program:

Zoom ID: 892 8767 3757, Zoom passcode: 907932

Lecture 1: April  15, 2024.  16:00-18:00, IFT auditorium

Lecture 2: April 16, 2024   16:00-18:00, IFT auditorium

 

Additional Information

How to reach the Institute: The minicourse will be held at ICTP South American Institute, located at IFT-UNESP, which is across the street from a major bus and subway terminal (Terminal Barra Funda). The address which is closer to the entrance of the IFT-UNESP building is R. Jornalista Aloysio Biondi, 120 – Barra Funda, São Paulo. The easiest way to reach us is by subway or bus, please find instructions here.

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Minicourse on fluid-dynamical models of heavy ion collisions

Simons-FAPESP talks

Written by Nathan on April 10th, 2024. Posted in

 

Monday, April 8  10:00  Andre Sadofyev(online)

Video: https://youtu.be/0bfVq8s7GBw

Title: Jet quenching from large to small systems

Abstract: Over the last decades, the theoretical picture of how hadronic jets interact with nuclear matter has been extended to account for the medium’s finite longitudinal length and expansion. However, only recently a first-principle approach has been developed that allows to couple the jet evolution to the medium flow and anisotropic structure. In this talk, I will review these developments, and discuss the features of jet quenching in evolving matter. I will consider the modifications of the single particle momentum broadening distribution and single-gluon production rate, and briefly discuss the potential phenomenological implications.

Thursday April 11  8:30  Matthew Ricci (online)

Video: https://www.youtube.com/watch?v=W2rlAQQiNXE

Title: Building low-dimensional representations of reaction-diffusion dynamics

Abstract: This seminar presents ongoing research on the qualitative dynamics of reaction-diffusion processes, cornerstone complex systems in physics and biology. These equations, fundamental to modeling phenomena ranging from chemical reactions to ecological and cellular processes, encapsulate the intricate balance between transport mechanisms and local interactions. A central aim in the study of such systems is to decipher the macroscopic or qualitative behaviors that emerge from these complex interactions, seeking to understand how patterns, waves, and structures develop on larger scales. However, despite the valuable analytical insights offered by perturbation or renormalization techniques, these approaches can struggle in highly nonlinear or multi-scale regimes and do not easily generalize to new parameters. Addressing these challenges, this work leverages recent advancements in data-driven dynamical systems theory to uncover the low-dimensional dynamics governing macroscopic features of interest. By employing machine learning techniques to derive low-dimensional representations, this approach clarifies the emergence of qualitative structures which are often obscured in the high-dimensional data of the original systems. This method not only facilitates a deeper understanding of the system’s dynamics but also opens new avenues for control and parameter identification. Preliminary results demonstrate the efficacy of this methodology in shedding light on the behavior of the Gray Scott model and Min protein dynamics, both examples of reaction-diffusion systems with significant theoretical and biological implications. The seminar will detail the theoretical underpinnings, methodological developments, and early outcomes of this research, highlighting its potential to advance our understanding of reaction-diffusion systems as they arise in biology.

Thursday April 11, 13:30  Alessandro Trani (online)

Video: https://www.youtube.com/watch?v=XVYx39pskmc

Title. Gravitational wave mergers of black holes in active galactic nuclei: challenges and opportunities

Abstract: Despite eight years since the initial detection of gravitational waves, the astrophysical origin of these phenomena remains elusive. Recent years have witnessed a growing interest in a novel gravitational wave formation pathway: the active galactic nuclei (AGN) channel.  I will begin by providing an overview of the current status of gravitational wave detections, the main astrophysical mechanisms driving the pairing and coalescence of black holes, and the observational signatures crucial for distinguishing between various formation scenarios.

I will then describe the key features of the AGN channel, discuss our ongoing efforts in modeling compact objects within accretion disks in AGNs, and highlight the primary challenges associated with modeling black hole-gas disk interactions.  Partially based on: arXiv:2403.00060, arXiv:2312.13281

Tuesday April 16, 11:00 Nahuel Freitas (auditorium)

Video: https://youtu.be/oUp_kMtgEpk

Title (colloquium): Non-Equilibrium Stochastic Thermodynamics

Abstract: Stochastic thermodynamics consists of a family of formalisms able to describe non-equilibrium processes in a general way and from a thermodynamic standpoint. It allows to obtain powerful results of universal nature, and has been employed in recent years to a wide variety of problems in different areas. I will introduce the basic concepts of the field and review recent developments. In particular, I will discuss a recent extension of the Second Law of thermodynamics to non-equilibrium steady states (Freitas and Esposito, Nat. Commun. 13, 5084 (2022)). I will also discuss the application of stochastic thermodynamics to non-linear electronic circuits (Freitas et. al. Phys. Rev. X 11, 031064 (2021)), and population dynamics models.

Wednesday April 17, 10:00 Antonio Oliveira Jr. (auditorium)

Video: https://youtu.be/JKh_n9KhGJE

Title (colloquium): Physical modeling of the genome: structural insights and biological consequences

Abstract: The genome is organized within a nucleus where chromosomes fold into an ensemble of conformations. This spatial arrangement within the nucleus is critical for regulating gene expression and other DNA-templated processes. Chromosome conformation capture techniques such as Hi-C provide information about the genome architecture by creating 2D contact maps. Recently, measuring efforts were expanded to several organisms, cell lines, tissues, and cell cycle phases, in which obtaining high-quality maps is still challenging. These contact maps serve as an essential input for top-down theoretical models. Aided by the under-development chromatin folding and structure theory, we create a framework using polymer theory enriched with the Maximum Entropy Approach to learn and understand the chromosome spatial organization. To enhance the training of the energy functions, we included a combined machine learning minimization method that allows us to speed up the modeling, even for large systems. We use our developed platform, Open-MiChroM, to perform fast simulations and training. The models generated are precise compared to the experimental Hi-Cs, and the 3D structures ensemble is consistent with the crystal liquid theory for chromosomes. Additionally, we are able to predict important features of chromosome organization, such as the phase separation between chromatin types and the formation of chromosome territories. This novel modeling allows the exploration of a broad spectrum of 3D genome organizations on different organisms, cell lines, and cell phases.

Thursday April 18, 11:00 Antonio Oliveira Jr. (auditorium)

Video: https://youtu.be/qxxTQLQRH18

Title (blackboard): Beyond the DNA Double Helix: Physics’ Role in Understanding Genomic Organization Complexity

Friday April 19, 15:00 Nahuel Freitas (auditorium)

Video Part 1: https://youtu.be/mJm9OTKPl18

Video Part 2: https://youtu.be/_HutOa6qrfQ

Title (blackboard): Emergent Second Law in macroscopic stochstic thermodynamics

Abstract: I will discuss the derivation of the Emergent Second Law recently identified in Freitas and Esposito, Nat. Commun. 13, 5084 (2022). For stochastic systems with a well defined macroscopic limit, this result provides a link between the deterministic dynamics that emerges in such a limit, and the fluctuations that are observed at steady state. I will also discuss ongoing work about the generalization of this result to evolving non-equilibrium states.

Monday April 29, 10:30 Jaron Kent-Dobias

Video: https://youtu.be/6HYKP5A3ogU

Title (colloquium): Geometry and descent in random landscapes

Abstract: From quenched physical systems to simple optimization algorithms, descent in an energy or cost landscape is thought to underpin many interesting phenomena. Likewise, the geometry of this landscape is thought to explain diverse outcomes of this descent: in those with few minima, the lowest are easily found; while in those with very many, getting stuck among a proliferation of high minima is overwhelmingly likely. In mean-field spin glasses and inference problems, we can hope to use geometry to explain when transitions between these behaviors occur and which kind of minima will typically be found. I will describe the past success of this approach in the simplest spin glass models and its recent failure in slightly less simple ones. I will share several new results on the statistics and arrangement of metastable states and saddle points which together indicate that traditional mean-field geometric tools may not be able to answer everything. Finally, I share some thoughts on what extensions might be needed to precisely predict where descent goes.

Tuesday April 30, 15:00 Emiliano Ipiña Perez 

Video: https://youtu.be/fBh60zDKbiw

Title (colloquium): Self-regulated cell motility by substrates: the cases of cellular footprints and bacterial adhesion

Abstract: Eukaryotic cells and bacteria can use the substrate to self-regulate their movement. Eukaryotic cells, such as MDCK epithelial cells, leave footprints on the substrate, which are then used to regulate their motility and exploratory behavior. On the other hand, Escherichia coli bacteria stop and adhere to the surface to break confinement when swimming close to the surface and explore their surroundings more efficiently. In this talk, I will explore these mechanisms through mathematical models highlighting how both cells and bacteria, at two different biological scales, use the environment to self-regulate the way they explore their surroundings.

Wednesday May 1, 10:30 Jaron Kent-Dobias

Video: https://youtu.be/TgQgqLg_LlM

Title (blackboard): Statistics of metastable states in the spherical models and beyond

Abstract: Characterizing metastable states and saddle points in complex systems can shed light on a variety of equilibrium and out-of-equilibrium behaviors. In this talk, I will discuss the most versatile theoretical technique for this, the Kac–Rice method, and its application to family of mean-field models, the spherical spin glasses. I will draw connections from this technique to random matrix theory and Faddeev–Popov gauge fixing. For the spherical models, writing down an effective action is straightforward but finding physical saddle points can be challenging. I will show how, for the lowest-energy states, a BRST supersymmetry can be used to simplify the action and map it to a more tractable equilibrium problem. Finally, I will discuss challenges to using these techniques in inference problems with non-Gaussian energy functions, and current work being done to address them.

Thursday May 2, 10:30 Emiliano Ipiña Perez 

Video: https://youtu.be/GDGFPE3A_Sg

Title (blackboard): Cells in Motion: the interplay between motility, migration, and the environment

Abstract: The movement of microorganisms, including some eukaryotic cells and bacteria, is essential for numerous biological functions. The motility mechanisms of bacteria and eukaryotic cells are very different. Still, they share something in common: cell motility and its transport properties result from a complex interplay between the internal machinery of cells and the environment. As cells move, they actively modify their surroundings, which inevitably affects their movement. Yet, these two aspects have often been studied independently, resulting in a limited and incomplete understanding of how microorganisms migrate. I am interested in understanding how this interplay occurs in nature. Specifically, I am interested in how cells sense and respond to signals at the individual and collective level, what mechanisms they use to guide themselves, their motility properties and search strategies for locating targets, or how the environment modifies their motility behavior. Here, I will outline how I plan to address these questions by studying two fascinating problems: (i) the role of cellular footprints as a guidance mechanism and (ii) the effect of physical obstacles in bacterial infections.

Tuesday May 7, 15:00 Felipe Andrade-Oliveira

Video: https://youtu.be/6Z0zMpUeAhk

Title (colloquium): Measuring the Universe with Galaxy Surveys: Present and Future

Abstract: In recent years, large galaxy surveys have played a key role in cosmology, drawing together the effort of hundreds of researchers towards a common goal: accurate and precise measurements of the components of the Universe. In this colloquium, I present some details on how these experiments are built and the rich science behind them.  I show the recent cosmological results achieved by the Dark Energy Survey, the Dark Energy Spectroscopic Instrument, and the combination of these experiments with other probes. Finally, I will discuss the new challenges and expected advances by the next generation of surveys.

Thursday May 9, 14:30 Felipe Andrade-Oliveira

Video: https://youtu.be/tOXPOu4a-jg

Title (blackboard): Extracting Cosmological Information from Galaxy Surveys

Abstract: In this lecture, I explore the techniques employed in major observational projects such as the Dark Energy Survey (DES) and the upcoming Legacy Survey of Space and Time (LSST). The focus will be on understanding the basics of the construction of correlation functions and power spectra for photometric surveys, which are critical tools for analysing the distribution of galaxies and measuring cosmic parameters such as dark energy and dark matter.

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Fluid-dynamical models of heavy ion collisions

Written by Luiz Moreira on April 10th, 2024. Posted in

April 15-16, 2024

ICTP-SAIFR, São Paulo, Brazil

Auditorium of IFT-UNESP

Zoom link HERE

ID: 892 8767 3757

Password: 907932

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Abstract: Relativistic hydrodynamics plays a fundamental role in the theoretical description of the hot and dense nuclear matter produced in heavy ion collisions. The goal of this seminar is to discuss the fundamental assumptions and ingredients of such fluid-dynamical models, as well as future challenges in this field.

There is no registration fee.

Organizers:

  • Ana J Mizher (IFT-UNESP, Brazil): chairperson

Invited Speaker:

  • Gabriel Denicol (Fluminense Federal University):  Fluid-dynamical models of heavy ion collisions
Time: April 15 and April 16 (IFT-UNESP auditorium)
             4pm (Brazil time)

How to reach the Institute: The school will be held at ICTP South American Institute, located at IFT-UNESP, which is across the street from a major bus and subway terminal (Terminal Barra Funda). The address which is closer to the entrance of the IFT-UNESP building is R. Jornalista Aloysio Biondi, 120 – Barra Funda, São Paulo. The easiest way to reach us is by subway or bus, please find instructions here.

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Fluid-dynamical models of heavy ion collisions

Minicourse on Gravitational Wave Detectors and Sources

Written by Nathan on April 1st, 2024. Posted in

April 4-8, 2024

São Paulo, Brazil

ICTP-SAIFR/IFT-UNESP

 

Zoom link HERE

ID: 822 1632 0261

Password: wave

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In this minicourse of two lectures, the current plans for the next generation of terrestrial gravitational wave detectors will be outlined, with emphasis on the Einstein Telescope (ET).

Its reference configuration is a triangular shape consisting of three nested detectors with 10 km arms, where in each arm there is a `xylophone’ configuration made of an interferometer tuned toward high frequencies, and an interferometer tuned toward low frequencies and working at cryogenic temperature. The scientific perspectives under possible variations of this reference design will be presented, as well as a science case comparison between a single triangular geometry observatory and a network of two L-shaped detectors.

Then an outlook of possible sources of gravitational waves for third generation detections will be given, which include also stochastic and continuous ones, thus enlarging the goal detections from the compact binary coalescence which have been the only sources for second generation detectors so far.

There is no registration.

Lecturer:

  • Stefano Foffa (Univ. of Geneva, Switzerland)

 

Program:

April 4, 2024. 11:00-12:30, room 3 – Video here

April 8, 2024, 14:00-15:30, room 3 – Video here

Additional Information

How to reach the Institute: The minicourse will be held at ICTP South American Institute, located at IFT-UNESP, which is across the street from a major bus and subway terminal (Terminal Barra Funda). The address which is closer to the entrance of the IFT-UNESP building is R. Jornalista Aloysio Biondi, 120 – Barra Funda, São Paulo. The easiest way to reach us is by subway or bus, please find instructions here.

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Minicourse on Gravitational Wave Detectors and Sources

São Paulo Meeting on Soft and Biological Matter

Written by Elisa Pomari on March 26th, 2024. Posted in

May 17, 2024

ICTP-SAIFR, São Paulo, Brazil

Venue: Principia Institute

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The ICTP South-American Institute for Fundamental Research invites you to a special research group meeting dedicated to discussing important recent findings in the field of Soft and Biological Matter. This meeting will feature a few seminars by members of our community, as well as a keynote lecture to be given by distinguished Prof. M. Lisa Manning, from Syracuse University. Our meeting will provide a platform for fostering collaboration among members of the soft and biological matter community in São Paulo state, as well as a forum for discussion of key recent developments in the field.
There is no registration.

If you want to present your research, click HERE. Submission is now closed

If you want to receive more information about the meetings, click HERE.

List of participants: Updated on May 24, 2024

Organizers:

  • André P. Vieira (IFUSP)
  • Antônio J. Costa-Filho (FFCLRP-USP)
  • Danilo B. Liarte (ICTP-SAIFR/IFT-UNESP)
  • Pablo de Castro (ICTP-SAIFR/IFT-UNESP)
  • Thais A. Enoki (IFUSP)

 

Announcement:

Speakers

Keynote Speaker

  • M. Lisa Manning (Syracuse University): Predicting mechanics of 3D epithelia in vertebrate embryonic development

Invited Speakers

  • Adriano Alencar (IFUSP): Thermodynamics and transport across cells membranes
  • Antônio J. Costa-Filho (FFCLRP-USP): To be or not to be: what is the function? The exquisite biophysics of the Golgi Reassembly and Stacking Proteins
  • Cristiano L. P. de Oliveira (IFUSP): Structural Investigations of Soft Matter Systems
  • Thereza Soares (FFCLRP-USP): Computational Simulations of Bacterial Membranes across Scales

 

 

Program


Videos and Files

Flash Talks

 

Photos

São Paulo Meeting on Soft and Biological Matter

Poster

Announcement:

Additional Information

How to reach the Principia Institute: The meeting will be held in the first-floor auditorium of the Science Center at Principia Institute located at Rua Pamplona, 145 near the Trianon-Masp metro station.

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São Paulo Meeting on Soft and Biological Matter