Format results

24 talksCollection NumberC24046
Talk


Intensity correlations: imaging and quantum optics in astrophysics
The French National Centre for Scientific Research 
Intensity Interferometry with the H.E.S.S. telescopes
ECAP, FAU ErlangenNürnberg 
Progress Toward MultiChannel Intensity Interferometry with the Southern Connecticut Stellar Interferometer
Southern Connecticut State University 

The Multi Aperture Spectroscopic Telescope: Status and potential as an intensity interferometry facility
Weizmann Institute of Science 

Future Astrophysical Targets for Intensity Interferometry
Canadian Institute for Theoretical Astrophysics (CITA)


WaterlooMunich Joint Workshop
21 talksCollection NumberC24002Talk

Opening Remarks

Max Planck Institute of Quantum Optics

Perimeter Institute for Theoretical Physics




Towards largescale quantum simulations with trapped ions  Rajibul Islam
Institute for Quantum Computing (IQC) 





Causalworlds
63 talksCollection NumberC24018Talk


Tutorial: Causal Inference Meets Quantum Physics
Perimeter Institute for Theoretical Physics 
Counterfactual and Graphical Frameworks for Causal Modeling
University of Washington 

Modeling Latent Selection with Structural Causal Models
University of Amsterdam, Kortewegde Vries Institute for Mathematics 
Relating Wigner's Friend Scenarios to Nonclassical Causal Compatibility, Monogamy Relations, and Fine Tuning
Perimeter Institute for Theoretical Physics 
Zero Inflation as a Missing Data Problem: a Proxybased Approach
Johns Hopkins Whiting School of Engineering 


Perimeter Institute Graduate Students' Conference 2024
12 talksCollection NumberC24041Talk

Everything that can be learned about a causal structure with latent variables by observational and interventional probing schemes
Perimeter Institute for Theoretical PhysicsPIRSA:24090191 



The gfunction and defect changing operators from wavefunction overlap on a fuzzy sphere
Perimeter Institute for Theoretical PhysicsPIRSA:24090190 
Open Quantum On Lie Group: An Effective Field Theory Approach
McMaster University and Perimeter InstitutePIRSA:24090192 
Photon Rings and Shadow Size for General Integrable Spacetimes
perimeter institute and university of WaterlooPIRSA:24090193 


Celestial Holography Summer School 2024
27 talksCollection NumberC24028Talk

Lecture  Celestial Holography Ia
PIRSA:24070002 
Lecture  Canonical a
PIRSA:24070003 
Lecture  Celestial Holography Ib
PIRSA:24070004 
Lecture  Amplitudes a
PIRSA:24070005 
Vision Talk
PIRSA:24070006 
Lecture  Celestial Holography IIa
PIRSA:24070007 
Lecture  Canonical b
PIRSA:24070008 
Lecture  Celestial Holography IIb
PIRSA:24070009


50 Years of Horndeski Gravity: Exploring Modified Gravity
46 talksCollection NumberC24019Talk



Horndeski Gravity in Cosmology
Leiden University 
How we rediscovered Horndeski gravity
École Normale Supérieure 
Black holes in Horndeski theories
IJCLAB CNRS 
HiCOLA: Horndeski Goes Nonlinear
University of Portsmouth 
Photon Rings and Shadow Size for General AxiSymmetric and Stationary Integrable spacetimes
perimeter institute and university of WaterlooPIRSA:24070086 


PSI 15th Anniversary Reunion
15 talksCollection NumberC24022Talk

Welcome & Happy 15th Anniversary
PIRSA:24060001 

Keynote
Max Planck Institute for Gravitational Physics  Albert Einstein Institute (AEI)PIRSA:24060003 
Driving Quantum Readiness  An Innovation Perspective
National Quantum Computing CentrePIRSA:24060004 
My NonGeodesic Career Trajectory: From Entrepreneurship to Data & AI Consulting
Avanade Inc (Montreal)PIRSA:24060005 
Solid State Detectors for LowMass Dark Matter Searches
Arthur B. McDonaldCanadian Astroparticle Physics Research InstitutePIRSA:24060006 

Cohort Project Presentation  "Catching Up": Holography
PIRSA:24060008


Physics of Quantum Information
20 talksCollection NumberC24017Talk


Repetition Code Revisited
University of California, Santa Barbara 

Stability of mixedstate quantum phases via finite Markov length
Stanford University 
The rise and fall of mixedstate entanglement: measurement, feedback, and decoherence
University of Maryland, College Park 
Universal bound on topological gap
Massachusetts Institute of Technology (MIT)  Department of Physics 
Mapping ground states to stringnets
Massachusetts Institute of Technology (MIT) 
Sequential Quantum Circuit
California Institute of Technology


Navigating Quantum and AI Career Trajectories: A Beginner’s MiniCourse on Computational Methods and their Applications
7 talksCollection NumberC24029Talk

Opening Remarks
PIRSA:24050051 




Recurrent Neural Networks (RNNs)
Perimeter Institute for Theoretical Physics 


SciComm Collider 2
3 talksCollection NumberC24030Talk

Foundations of Quantum Computational Advantage
21 talksCollection NumberC24020Talk


Values for compiled XOR nonlocal games
University of Ottawa 
Reliable quantum computational advantages from quantum simulation
University of Granada 
Cohomological description of contextual measurementbased quantum computations — the temporally ordered case
Leibniz University Hannover 





Higher Categorical Tools for Quantum Phases of Matter
15 talksCollection NumberC24016Talk


Analogies between QFT and lattice systems
California Institute of Technology (Caltech)  Division of Physics Mathematics & Astronomy 
Models of anyons with symmetry: a bulkboundary correspondence
University of Minnesota 
Twisted Tools for (Untwisted) Quantum Field Theory
Stony Brook University 
Quantum double models and DijkgraafWitten theory with defects
Catherine Meusburger 
Topological sectors in quantum lattice models
Institut des Hautes Etudes Scientifiques (IHES) 
DouglasReutter 4d TQFT as a generalised orbifold
Vilnius University 
Weak Hopf symmetric tensor networks
University of Vienna


Future Prospects of Intensity Interferometry
24 talksCollection NumberC24046Recent advancements in photodetection technologies and spectroscopy hold the promise of transforming intensity interferometry, thereby revolutionizing observational Astronomy by enabling observations to resolve significantly fainter objects than currently possible. This workshop serves as a platform to unite experts in photodetection, theoretical and observational astronomy, as well as observers and theorists from diverse disciplines, to explore the multifaceted capabilities of intensity interferometry.
The workshop's focus spans three key objectives:
 Develop and disseminate novel ideas concerning science cases unique to intensity interferometry.
 Synthesize insights from observers and photodetector experts concerning the requisite technologies and experimental techniques which will allow for new science with intensity interferometry.
 Initiate a concentrated effort to propel the development of large telescope arrays dedicated to intensity interferometry.
This workshop will be exclusively organized in plenary sessions, providing ample time for engaging discussions among participants.
Scientific Organizers
Masha Baryakhtar  University of Washington
Neal Dalal  Perimeter Institute
Marios Galanis  Perimeter Institute
Junwu Huang  Perimeter Institute 
WaterlooMunich Joint Workshop
21 talksCollection NumberC24002Join us for a pioneering joint workshop between renowned research institutions in Munich and Waterloo! This exciting event will focus on the topic of quantum simulation, with additional talks delving into various subjects of quantum science and technology. Designed to include researchers across different levels, from group leaders, postdoctoral fellows, and PhD students, this inaugural collaboration aims to unite scientists from both locations, fostering valuable networking opportunities and promoting interdisciplinary collaboration. Don't miss this extraordinary opportunity to connect, exchange ideas, and shape the future of quantum research together!

Causalworlds
63 talksCollection NumberC24018Understanding causality is fundamental to science and inspires wideranging applications, yet there are several distinct notions of causation. Recently, there have been important developments on the role of causality in quantum physics, relativistic physics and their interplay. These have unearthed a plethora of fascinating open questions regarding the nature of causation, emergence of spacetime structure and the limits of quantum information processing. At the same time, causal reasoning has become an important tool in machine learning and statistics, with applications ranging from big data to healthcare. This conference brings together experts from different areas of physics working on questions related to causality, as well as selected researchers who bridge the gap between fundamental research and current industrial applications. The aim of the conference is to provide a venue for crosspollination of these ideas through scientific exchange between these communities. The conference will focus on the following facets of causality:
• Quantum and classical causal inference
• Indefinite causal order and quantum reference frames
• Causality in quantum field theory and quantum gravity
• Experiments and applications of causality
:: :: ::
Important dates
Paper submission deadline: 24 May 2024 // 31 May 2024
Paper notification: 3 July 2024 Registration deadline (with application for financial assistance): 18 July 2024
Registration deadline: 28 August 2024
Conference: 1620 September 2024 Update: The submission deadline has been extended to 31st May 2024 for
papers which clearly justify their relevance for the following three
topics: 1) classical causal inference, 2) causality in relativistic physics (including quantum field theory and quantum gravity) and 3) experiments in causality. As we have received a sufficiently high number of submissions on the remaining topics (particularly indefinite causality and quantum causal models), the original deadline of 24th May still holds for submissions in this category. :: :: ::
Call for Abstracts
Prospective speakers can submit a paper for a contributed talk (in person or online) and/or a poster (in person only) via the Call for Abstracts. The Call for Abstracts is now open! Submissions for a talk will automatically be considered for a poster if not accepted for a talk.:: :: ::
Invited Speakers
Jessica Bavaresco (University of Geneva)
Cyril Branciard (CNRS, University Grenoble Alpes)
Rafael Chaves (Federal University of Rio Grande do Norte)
Giulio Chiribella (The University of Hong Kong)
Doreen Fraser (University of Waterloo)
AnneCatherine de la Hamette (IQOQI Vienna)
Ciarán Lee (Spotify)
Tein van der Lugt (University of Oxford)
Joris M. Mooij (University of Amsterdam)
Mio Murao (University of Tokyo)
Alejandro PozasKerstjens (University of Geneva)
Huw Price (Trinity College, Cambridge)
Renato Renner (ETH Zürich)
Thomas Richardson (University of Washington)
Sally Shrapnel (The University of Queensland)
Sumati Surya (Raman Research Institute)
Rainer Verch (University of Leipzig)
:: :: ::
Programme Committee
V Vilasini (ETH Zürich & Inria, University Grenoble Alpes) (PC Chair)
Augustin Vanrietvelde (Télécom Paris) (PC Cochair)
Alastair Abbott (Inria, University Grenoble Alpes)
Časlav Brukner (IQOQI Vienna & University of Vienna)
Eric Cavalcanti (Griffith University)
Chris Fewster (University of York)
Lucien Hardy (Perimeter Institute)
Hlér Kristjánsson (Perimeter Institute & IQC & Université de Montréal)
Giulia Rubino (University of Bristol)
Nitica Sakharwade (Università degli Studi di Napoli Federico II)
Robert Spekkens (Perimeter Institute)
Jacopo Surace (Perimeter Institute)
Elie Wolfe (Perimeter Institute)
LinQing Chen (ETH Zürich & IQOQI Vienna)
Hippolyte Dourdent (ICFO Barcelona)
Tamal Guha (University of Hong Kong)
Robin Lorenz (Quantinuum, Oxford)
Maria Papageorgiou (IQOQI Vienna)
Nicola Pinzani (Université libre de Bruxelles)
MarcoTúlio Quintino (Sorbonne Université, Paris)
MarcOlivier Renou (Inria ParisSaclay & CPHT, École polytechnique)
David Schmid (ICTQT, University of Gdańsk)
John Selby (ICTQT, University of Gdańsk)
Akihito Soeda (National Institute of Informatics, Tokyo)
Matthew Wilson (University College London)
:: :: ::
Scientific Organizers
Hlér Kristjánsson (Perimeter Institute & IQC & Université de Montréal) (Chair)
V Vilasini (ETH Zürich & Inria, University Grenoble Alpes)
Robert Spekkens (Perimeter Institute)
Lucien Hardy (Perimeter Institute)
Elie Wolfe (Perimeter Institute)
Jacopo Surace (Perimeter Institute)
Marina Maciel Ansanelli (Perimeter Institute)
Yìlè Yīng (Perimeter Institute)
María Ciudad Alañón (Perimeter Institute)
Daniel Centeno Díaz (Perimeter Institute)
Khushi Gandhi (Perimeter Institute & University of Waterloo):: :: ::
Previous editions:
Causalworlds 2022: The interface between quantum and relativistic causality, foundations and practicalities
Organised at ETH Zürich in 2022. Website: https://causalworlds.ethz.ch/" 
Perimeter Institute Graduate Students' Conference 2024
12 talksCollection NumberC24041The annual Graduate Students’ Conference showcases the diverse research directions at Perimeter Institute, both organized and presented by the students. Our graduate students are invited to share their best work with their fellow PhD students, PSI students and other PI residents interested in hearing about physics research and discussing it in a lively atmosphere full of questions.
PSI students are welcome to join as audience members on Friday, Sept 13 and to present a Lightning Talk if they wish to do so.

Celestial Holography Summer School 2024
27 talksCollection NumberC24028Perimeter Institute is happy to host the inaugural summer school for the Simons Collaboration on Celestial Holography July 2226 in Waterloo, ON. The program will feature lectures on background material relevant for graduate students and postdocs interested in this emerging subfield, paired with vision talks on exciting future research directions.
:: :: ::

50 Years of Horndeski Gravity: Exploring Modified Gravity
46 talksCollection NumberC24019Recent years have seen a flood of new data, from gravitational wave observations of merging black holes and neutron stars to precision probes of cosmology, which allow for unprecedented tests of our understanding of gravity. Going handinhand with this, there has been significant recent progress on the theoretical side in terms of formulating modified theories of gravity, and using them to make detailed predictions, including in the nonlinear and dynamical regime, which can be confronted with the observations.
We are excited to announce a landmark conference that plans to delve into the forefront of research on modified theories of gravity and brings together leading experts from different disciplines including observational astrophysicists, numerical relativists, cosmologists and mathematical physicists to explore the present status of modified theories of gravity and envision their future theoretical development and implications for observations.
This conference is also timed to coincide with the 50th anniversary of pioneering work in this area carried out by Gregory Horndeski in the Waterloo Mathematical Physics Community. Hosted jointly by Perimeter Institute and the University of Waterloo, this conference will serve as a forum for researchers from different disciplines to exchange ideas at the cutting
edge of gravitational physics.
Presented by:
Sponsored in part by Gravity Theory Trust
:: :: ::Topics:
• Modified Gravity Theories: Theoretical Framework and Models
• Tests of modified Gravity with Gravitational Waves (LIGO/LISA/PTA)
• Astrophysical/cosmological tests of gravity
• Mathematical structure of Modified gravity
• Observational tests of quantum gravity
• Modified gravity in the early universeConference Structure:
The conference will feature a balanced blend of plenary sessions (invited Speakers), contributed talks, panel discussions and poster presentations for students.
• Keynote presentations by renowned physicists in the field, discussing the impact of Horndeski theories and other modified theories of gravity on cosmology, dark energy, and black hole physics.
• Contributed talks: prioritizing earlycareer researchers
• Panel discussions on emerging research directions, unresolved questions, and potential applications of Horndeski theories.
• Poster sessions for earlycareer researchers and graduate students to showcase their work and receive feedback from senior scientists.:: :: ::
Scientific Organizers:
 Ghazal Geshnizjani (Perimeter Institute, SOC Chair)
 William East (Perimeter Institute)
 Levon Pogosian (Simon Fraser University, Perimeter Institute Affiliate)
 Niayesh Afshordi (Perimeter Institute, U Waterloo, LOC Chair)
 Will Percival (Perimeter Institute, U Waterloo)
 Florian Girelli (U Waterloo, Perimeter Institute Affiliate)
 Jerome Quintin (U Waterloo, Perimeter Institute)
 Alex Krolewski (U Waterloo, Perimeter Institute, CITA)
:: :: ::

PSI 15th Anniversary Reunion
15 talksCollection NumberC24022PSIons celebrate 15 years of Perimeter Scholars International with the first ever PSI reunion event!
Join us for 3 days that include:
 3 former PSI Keynote Speakers in Industry
 3 former PSI Speakers in Academia
 A chance to win 1 of 7 Grants of up to 5000 CAD each for a PSI class project to be developed and presented at the reunion (see Call for Projects for details)
 Social events with your cohorts and PSI special guests
 Lots of time to connect with classmates and PSIons, while immersing yourself in Perimeter’s lively research and collaboration environment.
_______________________________________________________
The Perimeter Scholars International (PSI) Master's program is offered in collaboration by Perimeter Institute and the University of Waterloo.

Physics of Quantum Information
20 talksCollection NumberC24017The dialogue between quantum information and quantum matter has fostered notable progress in both fields. Quantum information science has revolutionized our understanding of the structure of quantum manybody systems and novel forms of outofequilibrium quantum dynamics. The advances of quantum matter have provided novel paradigms and platforms for quantum information processing.
This conference aims to bring together leading experts at the intersections of quantum information and quantum matter. Key topics include: (i) quantum error correction, (ii) quantum dynamics, and (iii) quantum simulation.Organizers:
Timothy Hsieh, Perimeter Institute
Beni Yoshida, Perimeter Institute
Zhi Li, Perimeter Institute
TsungCheng Lu, Perimeter Institute
Meenu Kumari, National Research Council Canada:: :: ::

Navigating Quantum and AI Career Trajectories: A Beginner’s MiniCourse on Computational Methods and their Applications
7 talksCollection NumberC24029The dynamic field of quantum physics and artificial intelligence is expanding across both academic and industrial landscapes. This minicourse offers an introduction to computational techniques currently utilized in the quantum sector, highlighting nonacademic career paths for individuals interested in quantum physics and machine learning. The program features two lecture series: one on generative modeling  covering topics (such as restricted Boltzmann machines, recurrent neural networks, and transformers)  and the other on quantum machine learning algorithms. Participants will also benefit from practical coding tutorials, networking opportunities, and related events about the landscape of Quantum and AI.
Land Acknowledgement
In the spirit of understanding and learning from what has come before, Perimeter Institute respectfully acknowledges that we are located on the traditional territory of the Attawandaron, Anishnaabeg, and Haudenosaunee peoples.
Perimeter is situated on the Haldimand Tract, land promised to Six Nations, which includes six miles on each side of the Grand River. As settlers, we thank all the generations of people who have taken care of this land for thousands of years. We are connected to our collective commitment to make the promise and the challenge of Truth and Reconciliation real in our communities. 
SciComm Collider 2
3 talksCollection NumberC24030The second annual SciComm Collider workshop will bring together a group of the most innovative science communicators helping to connect the public with topics in physics and astronomy for a threeday workshop aimed at sharing ideas, creating new collaborations, and exploring ways to more effectively engage the public with the most exciting ideas in science. The workshop will consist of short seminars, interactive sessions, and opportunities to brainstorm new ideas with fellow communicators and creators, as well as venues for interaction between invited science communicators and Perimeter outreach/communications team members and researchers.

Foundations of Quantum Computational Advantage
21 talksCollection NumberC24020The workshop marks the halfway point of the similarly named (FoQaCiA, pronounced "focaccia") collaboration between researchers in Canada and Europe, funded as part of a flagship partnership between NSERC and Horizon Europe.
https://www.foqacia.org/
The goal of FoQaCiA is to develop new foundational approaches to shed light on the relative computational power of quantum devices and classical computers, helping to find the "line in the sand" separating tasks admitting a quantum speedup from those that are classically simulable.
The workshop will focus on the four central interrelated themes of the project:
1. Quantum contextuality, nonclassicality, and quantum advantage
2. The complexity of classical simulation of quantum computation
3. The arithmetic of quantum circuits
4. The efficiency of faulttolerant quantum computation
Our view is that the future success of quantum computing critically depends on advances at the most fundamental level, and that largescale investments in quantum implementations will only pay off if they can draw on additional foundational insights and ideas:: :: ::
Scientific Organizers:
Rui Soares Barbosa (INL  International Iberian Nanotechnology Laboratory)
Anne Broadbent (University of Ottawa)
Ernesto Galvão (INL  International Iberian Nanotechnology Laboratory)
Rob Spekkens (Perimeter Institute)
Jon Yard (Perimeter Institute):: :: ::
FoQaCiA is funded by:

Higher Categorical Tools for Quantum Phases of Matter
15 talksCollection NumberC24016Quantum phases have become a staple of modern physics, thanks to their appearance in fields as diverse as condensed matter physics, quantum field theory, quantum information processing, and topology. The description of quantum phases of matter requires novel mathematical tools that lie beyond the old symmetry breaking perspective on phases. Techniques from topological field theory, homotopy theory, and (higher) category theory show great potential for advancing our understanding of the characterization and classification of quantum phases. The goal of this workshop is to bring together experts from across mathematics and physics to discuss recent breakthroughs in these mathematical tools and their application to physical problems.
Scientific Organizers
Lukas Mueller
Alex Turzillo
Davide Gaiotto
Sponsored in part by the Simons Collaboration on Global Categorical Symmetries