Witnessing Quantum Aspects of Gravity in a Lab

September 23 – 27, 2024

São Paulo, Brazil

ICTP-SAIFR/Principia Institute

Home

Understanding gravity in the framework of quantum mechanics is one of the significant challenges in modern physics. Along this line, a primary question is whether gravity is a quantum entity subject to quantum mechanical rules. Despite the purported weakness of gravity, the phase evolution induced by the gravitational interaction of two-micron size test masses in adjacent matter-wave interferometers can detectably entangle them via the exchange of graviton mediation even when they are placed far enough apart to keep Casimir-Polder forces at bay.

This prescription for witnessing entanglement certifies gravity as a coherent quantum mediator through simple correlation measurements between two spins: one embedded in each test mass known as a QGEM (quantum gravity induced entanglement of masses) protocol. This workshop will discuss various theoretical and experimental challenges to conceive the QGEM protocol in a lab that will require an unprecedented level of accuracy in witnessing the quantum nature of one of nature’s weakest interactions. Moreover, this workshop will also address other theoretical and experimental endeavors to conceive quantum-gravity phenomenology in several different settings.

This event will be instrumental in fostering exchange and collaboration among a diverse cluster of researchers, including expanding field landscapes and exploring new research directions. By incorporating perspectives from multiple communities, we expect to chart a path toward future trends for foundational physics from the study of quantum gravitational phenomena and their crossing with many different areas of modern physics. Key scientific topics at this intersection of theory and experiment cover the recent program for modeling tabletop tests to probe the quantum-gravitational origin of entanglement of massive objects, studies of analogue gravity in condensed-matter systems, tests of the equivalence principle, studies of the interplay of fundamental symmetries in neutrino oscillations, tests of modification of quantum mechanics in configurations where gravity plays an important role, modified dispersion relations, precision tests of general relativity in astrophysics, effective field theory of general relativity and the search of potential quantum gravity signatures in the investigation of cosmic messengers.

The first part of the workshop will focus on possible quantum experiments, and the second part will focus on theoretical aspects of general relativity.

 

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

 

Organizers:

Andrea Addazi (Sichuan University, China, and INFN, Italy)
Sougato Bose (University College London, UK)
Catalina Curceanu (INFN, Italy)
Andrew Geraci (Northwestern University, USA )
Antonino Marcianò (Fudan University, China, and INFN, Italy)
Anupam Mazumdar (University of Groningen, Netherlands)
Gabriel Menezes (UFRRJ and IFT-UNESP, Brazil)
Giorgio Torrieri (Campinas State U., Brazil)

List of Participants: Updated on September 26,2024

Survey: Here

Invited Speakers

  • Alessandro Codello (Universidad de la Republica, Uruguay): Asymptotic Safety and/or EFT of Quantum Gravity
  • André Landulfo (UFABC, Brazil): Quantum Communication in Curved Spacetimes
  • Antonio D. Pereira (UFF, Brazil): The predictive power of Asymptotically Safe Quantum Gravity: Can we test it?
  • Barbara Amaral (USP São Paulo, Brazil): How can we define and quantify non-classicality?
  • Carlo Cepollaro (Austrian Academy of Sciences and University of Vienna, Austria): Towards an experimental test for a quantum extension of Einstein’s equivalence principle
  • Daine Danielson (University of Chicago, USA): Black Holes and Cosmological Horizons Decohere Quantum Superpositions
  • Dave Moore (Yale University, USA ): Optically levitated nanogram-scale masses for precision tests of gravity
  • Gautam Satishchandran (Princeton University, USA): Gravitationally Mediated Entanglement: Newtonian Fields, Gravitons and Black Holes
  • Gavin Morley (University of Warwick, UK): Levitating Diamonds Containing Nitrogen-Vacancy Centres
  • Hendrik Ulbricht (Southampton University, USA): Large-mass quantum systems for testing the overlap between quantum mechanics and gravity
  • Iarley Lobo (Federal University of Paraíba and Federal University of Lavras, Brazil): Quantum-spacetime effects on nonrelativistic Schrödinger evolution
  • Jack Harris (Yale University, USA): Testing quantum mechanics by measuring the high-amplitude motion of a massive oscillator
  • John F. Donoghue (UMass Amherst, USA): TBA
  • Jonathan Oppenheim (University College London, UK): A postquantum theory of classical gravity?
  • Kristian Piscicchia (INFN-LNF and Centro Ricerche Enrico Fermi, Italy): Highly sensitive X-ray measurements to investigate the interplay
    between quantum mechanics and gravity
  • Luca Apadula (Austrian Academy of Sciences and University of Vienna, Austria): dentification is Pointless: Quantum Reference Frames, Localisation of Events, and the Quantum Hole Argument
  • Marko Toros (University College London, UK): Searching for signatures of quantum gravity in the laboratory
  • Markus Arndt (University of Vienna, Austria): Universal matter-wave interferometry across the mass & complexity scales
  • Markus Aspelmeyer (University of Vienna, Austria): TBA
  • Massimo Blasone (University of Salerno, Italy): Weak equivalence principle violation for flavor neutrinos states
  • Maurício Richartz (UFABC, Brazil): Superradiance and ergoregion instabilities in vortices
  • Nami Svaiter (CBPF, Brazil): Analog Model for Euclidean Wormholes Effects
  • Oriol Romero-Isart (University of Innsbruck, Austria): TBA
  • Peter Barker (University College London, UK): TBA
  • Philip Stamp (University of British Colombia, Canada): The CWL theory of Quantum Gravity
  • Robert Mann (Perimeter Institute and University of Waterloo, Canada): Spacetime in Superposition
  • Roldão da Rocha (UFABC, Brazil): Deformations of AdS(5)-Schwarzschild black branes: constraints from the viscosities of the quark-gluon plasma at LHC and RHIC
  • Ron Folman (Ben Gurion University, Israel): Can a Rock be a Wave? From 100 years of De-Broglie’s Wave-Particle Duality, to Quantum-Gravity
  • Sandro Donadi (Queens University, UK): Underground test of gravity-related wave function collapse
  • Thiago Guerreiro (PUC-Rio, Brazil): Structured light levitation of nanoparticles for fundamental physics experiments
  • Timothy Light Kovachy (Northwestern University, USA): Exploring Connections Between Large-Scale Atom Interferometry and High-Mass Matter
    Wave Interferometry
  • Tong Cang Li (Purdue University, USA): Levitated Optomechanics with Internal Quantum States
  • Vivishek Sudhir (MIT, USA): TBA
  • Yanbei Chen (Caltech, USA): TBA

 

Abstracts: HERE

Registration

Announcement:

Registration is now closed

Program

The program might be changed

 

Videos and Files

2024-09-23 2024-09-24 2024-09-25 2024-09-26 2024-09-27
Close

asdasdasd

{abstract}

Photos

Witnessing Quantum Aspects of Gravity in a Lab

Poster session

  • Daniel R. Tandeitnik (PUC-Rio): All-Optical Saddle Trap
  • Filipe Ferracioli (UNICAMP): Interpreting the Circular Unruh Effect as a Measurable Quantum Dissipation Phenomenon in Electron Spin Polarization within Storage Rings
  • Francisco Bento Lustosa (Brazilian Center for Research in Physics): Pilot-waves for quantum fields of delocalized sources
  • Francisco Jara Lobo (Universidad de Concepción): Gravitational Redshift in Quantum State Discrimination
  • Germain Tobar (Stockholm University): Revisiting the graviton detection problem with optomechanical systems
  • Gislaine Varão (Universidade Federal da Paraíba): Fractional Quantum Mechanics Meets Quantum Gravity Phenomenology
  • Jaffino Stargen D (Joy University, Tamilnadu, India): Cavity optimization for Unruh effect at small accelerations
  • Jhonata Amado da Silva (UFU): Dynamical Quantum Phase Transitions of the Creutz Model with Long-Range Hopping
  • Julian Hatfield Iacoponi (University College London): Toward ultra-precise gravity measurement with levitated sensors
  • Lucas Haiashi Lima (Centro Brasileiro de Pesquisas Físicas): Classical Observables from Quantum Scattering Amplitudes
  • Marco Antonio Rivera Tapia (MIRO): Estimation of the Post-Newtonian parameters of Earth’s gravitational field using a Hong-Ou-Mandel interferometer
  • Michael A. Ivanov (Belarus State University of Informatics and Radioelectronics): Revealing the quantum origin of gravity
  • Níckolas Alves (Universidade Federal do ABC): Positive Mass in General Relativity Without Energy Conditions
  • Patrick Dreger Andriolo (International Institute of Physics (UFRN)): Quantifying Bell Nonlocality on Gravitationally Entangled Qudits
  • Pedro Ventura Paraguassú (PUC-Rio): Quantum-induced Stochastic Optomechanical Dynamics: Borrowing approaches from stochastic gravity
  • Rafael Mufato Reis (PUC-Rio): Preparation of Non-Gaussian states of levitated optomechanics
  • Shafaq Gulzar Elahi (Northwestern University, Evanston, Illinois, USA): Towards Quantum Gravity Mediated Entanglement Experiments Using Magnetically Levitated Nano-diamonds
  • Vitor Neves da Silva (UNESP): Non-Fermi Liquids in AdS/CFT correspondence

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.

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 program will be held at Principia Institute of the Institute for Theoretical Physics Foundation, located at Rua Pamplona, 145.