Format results

Talk

Lecture  Beautiful Papers
Pedro Vieira Perimeter Institute for Theoretical Physics

Lecture  Beautiful Papers
Pedro Vieira Perimeter Institute for Theoretical Physics

Lecture  Beautiful Papers
Pedro Vieira Perimeter Institute for Theoretical Physics

Lecture  Beautiful Papers
Pedro Vieira Perimeter Institute for Theoretical Physics

Lecture  Beautiful Papers
Pedro Vieira Perimeter Institute for Theoretical Physics

Lecture  Beautiful Papers
Pedro Vieira Perimeter Institute for Theoretical Physics

Lecture  Beautiful Papers
Pedro Vieira Perimeter Institute for Theoretical Physics


Talk

Lecture  Relativity, PHYS 604
Ghazal Geshnizjani Perimeter Institute for Theoretical Physics

Lecture  Relativity, PHYS 604
Ghazal Geshnizjani Perimeter Institute for Theoretical Physics


Talk

Lecture  QFT II, PHYS 603
Francois David CEA Saclay

Lecture  QFT II, PHYS 603
Francois David CEA Saclay


Talk

Lecture  Statistical Physics, PHYS 602
Emilie Huffman Perimeter Institute for Theoretical Physics

Lecture  Statistical Physics, PHYS 602
Emilie Huffman Perimeter Institute for Theoretical Physics

Lecture  Statistical Physics, PHYS 602
Emilie Huffman Perimeter Institute for Theoretical Physics

Lecture  Statistical Physics, PHYS 602
Emilie Huffman Perimeter Institute for Theoretical Physics

Lecture  Statistical Physics, PHYS 602
Emilie Huffman Perimeter Institute for Theoretical Physics

Lecture  Statistical Physics, PHYS 602
Emilie Huffman Perimeter Institute for Theoretical Physics

Lecture  Statistical Physics, PHYS 602
Emilie Huffman Perimeter Institute for Theoretical Physics

Lecture  Statistical Physics, PHYS 602
Emilie Huffman Perimeter Institute for Theoretical Physics


Talk

Lecture  QFT I, PHYS 601
Gang Xu Perimeter Institute for Theoretical Physics

Lecture  QFT I, PHYS 601
Gang Xu Perimeter Institute for Theoretical Physics

Lecture  QFT I, PHYS 601
Gang Xu Perimeter Institute for Theoretical Physics

Lecture  QFT I, PHYS 601
Gang Xu Perimeter Institute for Theoretical Physics

Lecture  QFT I, PHYS 601
Gang Xu Perimeter Institute for Theoretical Physics

Lecture  QFT I, PHYS 601
Gang Xu Perimeter Institute for Theoretical Physics

Lecture  QFT I, PHYS 601
Gang Xu Perimeter Institute for Theoretical Physics

Lecture  QFT I, PHYS 601
Gang Xu Perimeter Institute for Theoretical Physics


Talk


Intensity correlations: imaging and quantum optics in astrophysics
Robin Kaiser The French National Centre for Scientific Research

Intensity Interferometry with the H.E.S.S. telescopes
Naomi Vogel ECAP, FAU ErlangenNürnberg

Progress Toward MultiChannel Intensity Interferometry with the Southern Connecticut Stellar Interferometer
Elliott Horch Southern Connecticut State University


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


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


Talk

Lecture  Quantum Theory, PHYS 605
Dan Wohns Perimeter Institute for Theoretical Physics

Lecture  Quantum Theory, PHYS 605
Dan Wohns Perimeter Institute for Theoretical Physics

Lecture  Quantum Theory, PHYS 605
Dan Wohns Perimeter Institute for Theoretical Physics

Lecture  Quantum Theory, PHYS 605
Dan Wohns Perimeter Institute for Theoretical Physics

Lecture  Quantum Theory, PHYS 605
Dan Wohns Perimeter Institute for Theoretical Physics

Lecture  Quantum Theory, PHYS 605
Dan Wohns Perimeter Institute for Theoretical Physics

Lecture  Quantum Theory, PHYS 605
Dan Wohns Perimeter Institute for Theoretical Physics

Lecture  Quantum Theory, PHYS 605
Bindiya Arora Perimeter Institute for Theoretical Physics


Talk

Lecture  Classical Physics, PHYS 776
Aldo Riello Perimeter Institute for Theoretical Physics
PIRSA:24100001 
Lecture  Classical Physics, PHYS 776
Aldo Riello Perimeter Institute for Theoretical Physics

Lecture  Classical Physics, PHYS 776
Aldo Riello Perimeter Institute for Theoretical Physics
PIRSA:24090013 
Lecture  Classical Physics, PHYS 776
Aldo Riello Perimeter Institute for Theoretical Physics
PIRSA:24090012 
Lecture  Classical Physics, PHYS 776
Aldo Riello Perimeter Institute for Theoretical Physics
PIRSA:24090011 
Lecture  Classical Physics, PHYS 776
Aldo Riello Perimeter Institute for Theoretical Physics
PIRSA:24090010 
Lecture  Classical Physics, PHYS 776
Aldo Riello Perimeter Institute for Theoretical Physics
PIRSA:24090009 
Lecture  Classical Physics, PHYS 776
Aldo Riello Perimeter Institute for Theoretical Physics
PIRSA:24090008


Talk

Opening Remarks

Sonya Gzyl Max Planck Institute of Quantum Optics

Timothy Hsieh Perimeter Institute for Theoretical Physics




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






Talk


Tutorial: Causal Inference Meets Quantum Physics
Robert Spekkens Perimeter Institute for Theoretical Physics

Counterfactual and Graphical Frameworks for Causal Modeling
Thomas Richardson University of Washington


Modeling Latent Selection with Structural Causal Models
Leihao Chen University of Amsterdam, Kortewegde Vries Institute for Mathematics

Relating Wigner's Friend Scenarios to Nonclassical Causal Compatibility, Monogamy Relations, and Fine Tuning
Yìlè Yīng Perimeter Institute for Theoretical Physics


Zero Inflation as a Missing Data Problem: a Proxybased Approach
Trung Phung Johns Hopkins Whiting School of Engineering


Talk

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



The gfunction and defect changing operators from wavefunction overlap on a fuzzy sphere
Zheng Zhou Perimeter Institute for Theoretical Physics
PIRSA:24090190 
Open Quantum On Lie Group: An Effective Field Theory Approach
Afshin Besharat McMaster University and Perimeter Institute
PIRSA:24090192 
Photon Rings and Shadow Size for General Integrable Spacetimes
Kiana Salehi perimeter institute and university of Waterloo
PIRSA:24090193 


Talk

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


Beautiful Papers  October 7, 2024  January 31, 2025
Pedro will lead a minicourse (no credit) at Perimeter Institute. To express your interest in attending please complete this registration form (https://forms.office.com/r/nDQ6SDxSR4) by noon on Thursday, October 3. Pedro has selected 9 papers for this minicourse. Infrared Photons and Gravitons by Weinberg, 1965 Determination of an Operator Algebra for the 2D Ising Model by Kadanoff and Ceva, 1971 Confinement of Quarks by Wilson, 1974, Phenomenological Lagrangians by Weinberg, 1979, Gravitational Effects on and of Vacuum Decay by Coleman and De Luccia, 1980 Classical and Quantum Gravity Effects from Planckian Energy Superstring Collisions by Amati, Ciafaloni and Veneziano, 1987 Quantum Spin Chains and The Haldane Gap by Affleck, 1988 The Large N Limit of SFTs and Supergravity by Maldacena, 1997 Entanglement Entropy and Quantum Field Theory by Calabrese and Cardy, 2008 If you think there are super nice papers that are missing that could be better than some of these in a particular topic please contact Pedro directly (pvieira@perimeterinstitute.ca). The format will be: A] Pedro will give a 1h30m lecture about one of these papers on a Monday or a Friday (the Monday or Friday right after B] unless there is a holiday) B] One week later, X students give a presentation of Y minutes about important recent papers that refer/are related to that paper. At the end of this lecture we give feedback about those presentations. What is X and what is Y depends on how many students volunteer to present. Of course, people who just want to attend without presenting are also most welcome! Location: Alice Room, 3rd Floor, Perimeter Institute, 31 Caroline St N, Waterloo Recording/Zoom Details: Lectures will be recorded for PIRSA; Zoom link will be provided to registered participants. Building Access: Participants who do not have an access card for Perimeter Institute must sign in at the security desk before each session. When attending the lectures you can use the free selfserve coffee/water station on the ground floor. Meals and snacks at the onsite Black Hole Bistro are available at the full menu cost. 
Quantum Field Theory II (Core), PHYS 603, November 12  December 11, 2024
This course introduces the functional integral formalism, the renormalization group, and nonabelian gauge theory. Additional topics may be covered as time allows. Instructor: Francois David / Gang Xu Students who are not part of the PSI MSc program should review enrollment and course format information here: https://perimeterinstitute.ca/graduatecourses 
Relativity (Core), PHYS 604, November 12  December 11, 2024
This course offers an introduction to general relativity (GR), focusing on the core principles of Einstein's theory of gravity. We will explore key topics such as the equivalence principle, some essential concepts in differential geometry, the EinsteinHilbert action, and Einstein's field equations. Furthermore, we will examine practical applications of general relativity in understanding black holes, cosmology, and gravitational waves. Instructor: Ghazal Geshnizjani Students who are not part of the PSI MSc program should review enrollment and course format information here: https://perimeterinstitute.ca/graduatecourses 
Statistical Physics (Core), PHYS 602, October 7  November 6, 2024
The aim of this course is to explore the main ideas of the statistical physics approach to critical phenomena. We will discuss phase transitions, using the ferromagnetic phase transition and the Ising model as our primary example, with particular emphasis on the renormalisation group approach. Instructor: Emilie Huffman / Maite Dupuis Students who are not part of the PSI MSc program should review enrollment and course format information here: https://perimeterinstitute.ca/graduatecourses 
Quantum Field Theory I (Core), PHYS 601, October 7  November 6, 2024
The first half of the course explains why fields are desirable when quantum mechanics meets special relativity. The second half introduces different kinds of spinor fields and their interactions. Instructor: Gang Xu Students who are not part of the PSI MSc program should review enrollment and course format information here: https://perimeterinstitute.ca/graduatecourses 
Future Prospects of Intensity Interferometry
Recent 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 
Classical Physics (Core), PHYS 776, September 3  October 4, 2024
This is a theoretical physics course that aims to review the basics of theoretical mechanics, special relativity, and classical field theory, with the emphasis on geometrical notions and relativistic formalism, thus setting the stage for the forthcoming courses in Quantum Mechanics, and Quantum Field Theory in particular, as well as in General Relativity and Quantum Gravity. Instructor: Aldo Riello Students who are not part of the PSI MSc program should review enrollment and course format information here: https://perimeterinstitute.ca/graduatecourses 
Quantum Theory (Core), PHYS 605, September 3 – October 4, 2024
The aim of the first part is to present a brief overview of selected topics in quantum theory. Schrodinger, Heisenberg and Interaction picture is discussed and applied to study time evolution. Density matrix and Feynman path integral are introduced. The second part of the course derives the Feynman rules for scalar quantum field theory and introduces renormalization. Instructor: Bindiya Arora / Dan Wohns Students who are not part of the PSI MSc program should review enrollment and course format information here: https://perimeterinstitute.ca/graduatecourses 
WaterlooMunich Joint Workshop
Join 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
Understanding 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
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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)
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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)
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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
The 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
Perimeter 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.
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