Format results

Talk


Talk

Statistical Physics Lecture  120423
Emilie Huffman Perimeter Institute for Theoretical Physics
PIRSA:23120011 
Statistical Physics Lecture  120123
Emilie Huffman Perimeter Institute for Theoretical Physics
PIRSA:23120010 
Statistical Physics Lecture  112923
Emilie Huffman Perimeter Institute for Theoretical Physics
PIRSA:23110033 
Statistical Physics Lecture  112723
Emilie Huffman Perimeter Institute for Theoretical Physics
PIRSA:23110032 
Statistical Physics Lecture  112423
Emilie Huffman Perimeter Institute for Theoretical Physics
PIRSA:23110031 
Statistical Physics Lecture  112223
Emilie Huffman Perimeter Institute for Theoretical Physics
PIRSA:23110030 
Statistical Physics Lecture  112023
Emilie Huffman Perimeter Institute for Theoretical Physics
PIRSA:23110029 
Statistical Physics Lecture  111723
Emilie Huffman Perimeter Institute for Theoretical Physics
PIRSA:23110028


Talk

Topological Quantum Field Theories Lecture 20231201
Lukas Mueller Perimeter Institute for Theoretical Physics

Topological Quantum Field Theories Lecture 20231124
Lukas Mueller Perimeter Institute for Theoretical Physics

Topological Quantum Field Theories Lecture 20231110
Lukas Mueller Perimeter Institute for Theoretical Physics

Topological Quantum Field Theories Lecture 20231103
Lukas Mueller Perimeter Institute for Theoretical Physics

Topological Quantum Field Theories Lecture 20231027
Lukas Mueller Perimeter Institute for Theoretical Physics

Topological Quantum Field Theories Lecture 20231020
Lukas Mueller Perimeter Institute for Theoretical Physics

Topological Quantum Field Theories Lecture 20231013
Lukas Mueller Perimeter Institute for Theoretical Physics

Topological Quantum Field Theories Lecture 20231006
Lukas Mueller Perimeter Institute for Theoretical Physics


Talk


Talk

Twisted Holography MiniCourse  Lecture 20231130
Davide Gaiotto Perimeter Institute for Theoretical Physics

Twisted Holography MiniCourse  Lecture 20231123
Davide Gaiotto Perimeter Institute for Theoretical Physics

Twisted Holography MiniCourse  Lecture 20231116
Kevin Costello Perimeter Institute for Theoretical Physics

Twisted Holography MiniCourse  Lecture 20231109
Kevin Costello Perimeter Institute for Theoretical Physics

Twisted Holography MiniCourse  Lecture 20231102
Kevin Costello Perimeter Institute for Theoretical Physics


Talk


Talk


Talk

Lessons of the Effective Field Theory Treatment of General Relativity
John Donoghue University of Massachusetts Amherst

Positivity Bounds and Effective Fields Theories (A Review)
Andrew Tolley Imperial College London

Holography and its implications for quantum gravity  VIRTUAL
Johanna Erdmenger University of Würzburg

A hike through the Swamp
Miguel Mlontero IFT Madrid

Piecing Together a Flat Hologram
Sabrina Pasterski Perimeter Institute for Theoretical Physics

Open Discussion with today's speakers (Donoghue, Erdmenger, Montero, Pasterski, Tolley)

John Donoghue University of Massachusetts Amherst

Johanna Erdmenger University of Würzburg

Miguel Mlontero IFT Madrid

Sabrina Pasterski Perimeter Institute for Theoretical Physics

Andrew Tolley Imperial College London


Panel Discussion  Strengths and limitations of EFT (Donoghue, Knorr, Montero, Quevedo, Tolley)

John Donoghue University of Massachusetts Amherst

Miguel Mlontero IFT Madrid

Fernando Quevedo University of Cambridge

Carlo Rovelli Centre de Physique Théorique

Andrew Tolley Imperial College London


Status, perspective and three challenges in the asymptoticsafety paradigm for quantum gravity  VIRTUAL
Astrid Eichhorn University of Southern Denmark


Talk

3pt functions: Yes Q's
Pedro Vieira Perimeter Institute for Theoretical Physics

An explicit solution
Paul Ryan King's College London

QSC definition in N=4
Paul Ryan King's College London

Qfunctions in spin chains. QSC for spin chains
Paul Ryan King's College London

3pt function: No Q's
Pedro Vieira Perimeter Institute for Theoretical Physics


Talk

Classical Physics Lecture  100323
Aldo Riello Perimeter Institute for Theoretical Physics
PIRSA:23090037 
Classical Physics Lecture  100223
Aldo Riello Perimeter Institute for Theoretical Physics
PIRSA:23100033 
Classical Physics Lecture  092723
Aldo Riello Perimeter Institute for Theoretical Physics
PIRSA:23090036 

Classical Physics Lecture  092523
Aldo Riello Perimeter Institute for Theoretical Physics
PIRSA:23090035 
Classical Physics Lecture  092223
Aldo Riello Perimeter Institute for Theoretical Physics
PIRSA:23090034 
Classical Physics Lecture  092023
Aldo Riello Perimeter Institute for Theoretical Physics
PIRSA:23090033 
Classical Physics Lecture  091823
Aldo Riello Perimeter Institute for Theoretical Physics
PIRSA:23090032


Talk

Quantum Theory Lecture  100323

Bindiya Arora Perimeter Institute for Theoretical Physics

Dan Wohns Perimeter Institute for Theoretical Physics
PIRSA:23090049 

Quantum Theory Lecture  100223

Bindiya Arora Perimeter Institute for Theoretical Physics

Dan Wohns Perimeter Institute for Theoretical Physics
PIRSA:23100034 

Quantum Theory Lecture  092723

Bindiya Arora Perimeter Institute for Theoretical Physics

Dan Wohns Perimeter Institute for Theoretical Physics
PIRSA:23090048 

Quantum Theory Lecture  092623
Dan Wohns Perimeter Institute for Theoretical Physics
PIRSA:23090098 
Quantum Theory Lecture  092523

Bindiya Arora Perimeter Institute for Theoretical Physics

Dan Wohns Perimeter Institute for Theoretical Physics
PIRSA:23090047 

Quantum Theory Lecture  092123

Bindiya Arora Perimeter Institute for Theoretical Physics

Dan Wohns Perimeter Institute for Theoretical Physics
PIRSA:23090046 

Quantum Theory Lecture  092023

Bindiya Arora Perimeter Institute for Theoretical Physics

Dan Wohns Perimeter Institute for Theoretical Physics
PIRSA:23090045 

Quantum Theory Lecture  091823

Bindiya Arora Perimeter Institute for Theoretical Physics

Dan Wohns Perimeter Institute for Theoretical Physics
PIRSA:23090044 


Talk


QPV: An Overview and Reflections
Harry Buhrman Centrum Wiskunde & Informatica

PopescuRohrlich correlations imply efficient instantaneous nonlocal quantum computation
Anne Broadbent University of Ottawa
PIRSA:23090023 
Nonlocal quantum computation meets quantum gravity
Alex May Perimeter Institute for Theoretical Physics

Quantum ErrorCorrection and Holographic Task
Beni Yoshida Perimeter Institute for Theoretical Physics


Protocols and Implementations of Quantum Position Verification

Eric Chitamber University of Illinois

Paul Kwiat University of Illinois




Quantum Field Theory 2 2023/24
Quantum Field Theory 2 2023/24 

Topological Quantum Field Theories  minicourse
A quantum field theory is deemed topological if it exhibits the remarkable property of being independent of any background metric. In contrast to most other types of quantum field theories, topological quantum field theories possess a welldefined mathematical framework, tracing its roots back to the pioneering work of Atiyah in 1988. The mathematical tools employed to define and study topological quantum field theories encompass concepts from category theory, homotopy theory, topology, and algebra.
In this course, we will delve into the mathematical foundations of this field, explore examples and classification results, especially in lower dimensions. Subsequently, we will explore more advanced aspects, such as invertible theories, defects, the cobordism hypothesis, or state sum models in dimensions 3 and 4 (including TuraevViro and DouglasReutter models), depending on the interests of the audience.
Today, the mathematics of topological quantum field theories has found numerous applications in physics. Recent applications include the study of anomalies, noninvertible symmetries, the classification of topological phases of matter, and lattice models. The course aims to provide the necessary background for understanding these applications. 
General Relativity for Cosmology
This is an advanced graduate course which develops the math and physics of general relativity from scratch up to the highest level. The going will sometimes be steep but I try to be always careful. The purpose is to prepare for studies in quantum gravity, relativistic quantum information, black hole physics and cosmology. Quick summary of the contents:  Coordinatefree Differential Geometry, Weyl versus Ricci curvature versus Torsion, Vielbein Formalism, Spinconnections, Formvalued Tensors, Spectral Geometry, some Cohomology.  Derivations of General Relativity including as a Gauge Theory, Diffeomorphism Invariance vs. Symmetries, Bianchi Identities vs. Local and Global Conservation Laws.  Penrose Diagrams for Black Holes and Cosmology, Types of Horizons, Energy Conditions and Singularity theorems, Properties and Classification of Exact Solutions.  Cosmology and Models of Cosmic Inflation 
Twisted Holography MiniCourse
This minicourse will introduce twisted holography, which is holography for BPS subsectors of gauge theory and gravity. We will start by introducing the Bmodel topological string from the spacetime perspective, before discussing branes, backreaction, and the holographic duality.
Zoom: https://pitp.zoom.us/j/98839130613?pwd=SExFK0ZVYzJ3NmJhU1RFa21PWU1qQT09

Quantum Field Theory 1 2023/24
Quantum Field Theory 1 2023/24 

Puzzles in the Quantum Gravity Landscape: viewpoints from different approaches
Unraveling the quantum nature of gravity is one of the most pressing problems of theoretical physics. Several ideas have been put forward and resulted in a number of theories of quantum gravity. While these theories have explored different facets of the “quantum gravity landscape”, all viable approaches should ultimately make contact with observations, and answer exciting questions in cosmology and blackhole physics.
Sharing knowledge, exchanging ideas, and building a dictionary between different theories are crucial steps toward answering these questions, efficiently contrasting different theories, and ultimately reaching a deeper understanding of our Universe.
This conference will contribute to these goals by bringing together leading experts in different approaches to quantum gravity, gravitational effective field theory, blackhole physics, and cosmology. We will focus on specific puzzles in quantum gravity and their resolutions within different approaches. The conference will be highly interactive, with plenty of time to discuss common problems, understand the big picture, and develop novel connections between fields.Registration: Registration is now open, and both inperson and virtual participation is welcome. Online participants will be able to interact on an equal footing in question sessions and discussions. Inperson attendance is limited and will be approved on a firstcome, firstserved basis. Talks are by invitation only, but inperson participants are encouraged to apply to present a poster.
Spam warning: There is an increasing number of scam agencies reaching out to conference speakers and attendees. Perimeter Institute does not use thirdparty agencies. We advise speakers and attendees to ignore emails and not to provide any details to anyone who is not from Perimeter Institute.
Confirmed Speakers and Panelists:
 Abhay Ashtekar (Penn State University)
 Robert Brandenberger (McGill University)
 Luca Buoninfante (Nordita)
 Xavier Calmet (University of Sussex)
 Francesco di Filippo (Kyoto University)
 Bianca Dittrich (Perimeter Institute)
 John Donoghue (University of Massachusetts)
 Astrid Eichhorn (CP3origins)
 Johanna Erdmenger (Würzburg University)
 Ghazal Geshnizjani (Perimeter Institute)
 Ruth Gregory (King's College)
 Lavinia Heisenberg (Heidelberg University)
 Bob Holdom (University of Toronto)
 Benjamin Knorr (Nordita)
 Renate Loll (Radboud University Nijmegen)
 Miguel Montero (IFT Madrid)
 Rob Myers (Perimeter Institute)
 Sabrina Pasterski (Perimeter Institute)
 Fernando Quevedo (Cambridge University)
 Lisa Randall (Harvard University)
 Kasia Rejzner (York University)
 Mairi Sakellariadou (King's College)
 Lee Smolin (Perimeter Institute)
 Kellogg Stelle (Imperial College)
 Sumati Surya (Raman Research Institute)
 Andrew Tolley (Imperial College)
 Neil Turok (University of Edinburgh)
 Pedro Vieira (Perimeter Institute)
 Yasaman Yazdi (Imperial College)
Territorial Land Acknowledgement
Perimeter Institute acknowledges that it is situated on the traditional territory of the Anishinaabe, Haudenosaunee, and Neutral peoples.
Perimeter Institute is located on the Haldimand Tract. After the American Revolution, the tract was granted by the British to the Six Nations of the Grand River and the Mississaugas of the Credit First Nation as compensation for their role in the war and for the loss of their traditional lands in upstate New York. Of the 950,000 acres granted to the Haudenosaunee, less than 5 percent remains Six Nations land. Only 6,100 acres remain Mississaugas of the Credit land.
We thank the Anishinaabe, Haudenosaunee, and Neutral peoples for hosting us on their land.

Quantum Spectral Curve and Three Point Functions minicourse
In this minicourse we will describe some recent integrability developments in N=4 SYM. Pedro will start with some overview of three point functions in this theory. Paul will introduce the powerful Quantum Spectral Curve formalism describing the full planar spectrum of N=4 SYM starting with some elementary spin chain introduction. In this formalism, each operator in the theory is governed by a (set of) Qfunction(s). In his last lecture Paul will walk us through an explicit example from beginning to end of a QSC solution. Pedro will then describe some explorations on three point correlation functions in this theory. The goal would be to have a machine where three Qfunctions are given as input and a threepoint function is spit out as output. We will describe where we are in this quest.
No Zoom link or hybrid participation available. Registration is not required.



QPV 2023: Advances in quantum position verification
Quantum position verification (QPV) schemes use the properties of quantum information and the relativistic signalling bound to verify the location of an object (sometimes called a “tag”) to distant observers in an environment that may contain wouldbe spoofers. The guarantee is based on the assumptions of the underlying security model; various theoretically and practically interesting security models have been proposed. The area is attracting increasing interest, with new theoretical developments in security analyses, emerging experimental studies of QPV systems, and recently discovered surprising and intriguing connections to topics in quantum gravity. A workshop on QPV will be held at the Perimeter Institute for Theoretical Physics.
The workshop will cover topics related to all aspects of QPV, including, but not limited to:
 Theoretical developments related to the security of QPV schemes, including development or refinement of security models, proofs of security within given models, tradeoffs between security and efficiency, and Experimental studies of QPV and theoretical work aimed at developing practical QPV schemes.
 QPV’s relationship to other cryptographic tasks and primitives.
 QPV’s relationship to holography and quantum gravity.
Territorial Land Acknowledgement
Perimeter Institute acknowledges that it is situated on the traditional territory of the Anishinaabe, Haudenosaunee, and Neutral peoples.
Perimeter Institute is located on the Haldimand Tract. After the American Revolution, the tract was granted by the British to the Six Nations of the Grand River and the Mississaugas of the Credit First Nation as compensation for their role in the war and for the loss of their traditional lands in upstate New York. Of the 950,000 acres granted to the Haudenosaunee, less than 5 percent remains Six Nations land. Only 6,100 acres remain Mississaugas of the Credit land.
We thank the Anishinaabe, Haudenosaunee, and Neutral peoples for hosting us on their land.