Format results

Talk

Talk

Horizon entropy and the Einstein equation  Lecture 20230302
Ted Jacobson University of Maryland, College Park

Horizon entropy and the Einstein equation  Lecture 20230228
Ted Jacobson University of Maryland, College Park

Horizon entropy and the Einstein equation  Lecture 20230223
Ted Jacobson University of Maryland, College Park

Horizon entropy and the Einstein equation  Lecture 20230221
Ted Jacobson University of Maryland, College Park


Talk


Talk

Numerical Methods Lecture  230207
Erik Schnetter Perimeter Institute for Theoretical Physics
PIRSA:23020001 
Numerical Methods Lecture  230202
Erik Schnetter Perimeter Institute for Theoretical Physics
PIRSA:23020000 
Numerical Methods Lecture  230201
Erik Schnetter Perimeter Institute for Theoretical Physics
PIRSA:23020003 
Numerical Methods Lecture  230131
Erik Schnetter Perimeter Institute for Theoretical Physics
PIRSA:23010008 
Numerical Methods Lecture  230126
Erik Schnetter Perimeter Institute for Theoretical Physics
PIRSA:23010007 
Numerical Methods Lecture  230124
Erik Schnetter Perimeter Institute for Theoretical Physics
PIRSA:23010006 
Numerical Methods Lecture  230120
Erik Schnetter Perimeter Institute for Theoretical Physics
PIRSA:23010011 
Numerical Methods Lecture  230119
Erik Schnetter Perimeter Institute for Theoretical Physics
PIRSA:23010005


Talk


Talk

Mathematical Physics Lecture  230207
Kevin Costello Perimeter Institute for Theoretical Physics
PIRSA:23020005 
Mathematical Physics Lecture  230202
Kevin Costello Perimeter Institute for Theoretical Physics
PIRSA:23020004 
Mathematical Physics Lecture  230131
Kevin Costello Perimeter Institute for Theoretical Physics
PIRSA:23010018 
Mathematical Physics Lecture  230127
Kevin Costello Perimeter Institute for Theoretical Physics
PIRSA:23010021 
Mathematical Physics Lecture  230126
Kevin Costello Perimeter Institute for Theoretical Physics
PIRSA:23010017 
Mathematical Physics Lecture  230124
Kevin Costello Perimeter Institute for Theoretical Physics
PIRSA:23010016 
Mathematical Physics Lecture  230119
Kevin Costello Perimeter Institute for Theoretical Physics
PIRSA:23010015 
Mathematical Physics Lecture  230118
Kevin Costello Perimeter Institute for Theoretical Physics
PIRSA:23010022


Talk

Quantum Foundations Lecture  230206
Lucien Hardy Perimeter Institute for Theoretical Physics
PIRSA:23020017 
Quantum Foundations Lecture  230203
Lucien Hardy Perimeter Institute for Theoretical Physics
PIRSA:23020016 
Quantum Foundations Lecture  230102
Lucien Hardy Perimeter Institute for Theoretical Physics
PIRSA:23020015 
Quantum Foundations Lecture  230130
Lucien Hardy Perimeter Institute for Theoretical Physics
PIRSA:23010055 
Quantum Foundations Lecture  230127
Lucien Hardy Perimeter Institute for Theoretical Physics
PIRSA:23010054 
Quantum Foundations Lecture  230125
Lucien Hardy Perimeter Institute for Theoretical Physics
PIRSA:23010053 
Quantum Foundations Lecture  230123
Lucien Hardy Perimeter Institute for Theoretical Physics
PIRSA:23010052 
Quantum Foundations Lecture  230120
Lucien Hardy Perimeter Institute for Theoretical Physics
PIRSA:23010051


Talk



Fitting models to data using Markov Chain Monte Carlo
Dustin Lang Perimeter Institute for Theoretical Physics
PIRSA:23010076 



Topological quantum matter and quantum computing
TsungCheng Lu (Peter) Perimeter Institute for Theoretical Physics
PIRSA:23010084 
Topological quantum matter and quantum computing
TsungCheng Lu (Peter) Perimeter Institute for Theoretical Physics
PIRSA:23010086


Talk

Statistical Physics  Lecture 221213
PIRSA:22120011 
Statistical Physics  Lecture 221212
PIRSA:22120010 
Statistical Physics  Lecture 221207
PIRSA:22120009 
Statistical Physics  Lecture 221206
PIRSA:22120008 
Statistical Physics  Lecture 221205
PIRSA:22120007 
Statistical Physics  Lecture 221201
PIRSA:22120006 
Statistical Physics  Lecture 221130
PIRSA:22110019 
Statistical Physics  Lecture 221128
PIRSA:22110018


Talk

Quantum Field Theory II  Lecture 221213
PIRSA:22120005 
Quantum Field Theory II  Lecture 221212
PIRSA:22120004 
Quantum Field Theory II  Lecture 221207
PIRSA:22120003 
Quantum Field Theory II  Lecture 221206
PIRSA:22120002 
Quantum Field Theory II  Lecture 221205
PIRSA:22120001 
Quantum Field Theory II  Lecture 221202
PIRSA:22120000 
Quantum Field Theory II  Lecture 221130
PIRSA:22110011 
Quantum Field Theory II  Lecture 221128
PIRSA:22110010


Talk

QFT2  Quantum Electrodynamics  Afternoon Lecture
Cliff Burgess McMaster University


QFT2  Quantum Electrodynamics  Afternoon Lecture
Cliff Burgess McMaster University


QFT2  Quantum Electrodynamics  Afternoon Lecture
Cliff Burgess McMaster University


QFT2  Quantum Electrodynamics  Afternoon Lecture
Cliff Burgess McMaster University



Talk

Quantum adiabatic speedup on a class of combinatorial optimization problems

Madelyn Cain Harvard University
 Madelyn Cain


Towards an artificial Muse for new ideas in Quantum Physics
Mario Krenn Max Planck Institute for the Science of Light



A Study of Neural Network Field Theories
Anindita Maiti Perimeter Institute for Theoretical Physics

Quantum hypernetworks
Juan Carrasquilla Vector Institute for Artificial Intelligence

Representing quantum states with spiking neural networks

Stefanie Czischek University of Ottawa
 Stefanie Czischek


Adaptive Quantum State Tomography with Active Learning
Hannah Lange LudwigMaximiliansUniversitiät München (LMU)


Mini introductory course on topological orders and topological quantum computing
In this mini course, I shall introduce the basic concepts in 2D topological orders by studying simple models of topological orders and then introduce topological quantum computing based on Fibonacci anyons. Here is the (not perfectly ordered) syllabus.
 Overview of topological phases of matter
 Z2 toric code model: the simplest model of 2D topological orders
 Quick generalization to the quantum double model
 Anyons, topological entanglement entropy, S and T matrices
 Fusion and braiding of anyons: quantum dimensions, pentagon and hexagon identities
 Fibonacci anyons
 Topological quantum computing

Horizon entropy and the Einstein equation
This minicourse of four lectures is an introduction, review, and critique of two approaches to deriving the Einstein equation from hypotheses about horizon entropy.
It will be based on two papers:
 "Thermodynamics of Spacetime: The Einstein Equation of State" arxiv.org/abs/grqc/9504004
 "Entanglement Equilibrium and the Einstein Equation" arxiv.org/abs/1505.04753
We may also discuss ideas in "Gravitation and vacuum entanglement entropy" arxiv.org/abs/1204.6349
Zoom Link: https://pitp.zoom.us/j/96212372067?pwd=dWVaUFFFc3c5NTlVTDFHOGhCV2pXdz09

Standard Model (2022/2023)
Topics will include: Nonabelian gauge theory (aka YangMills theory), the Standard Model (SM) as a particular nonabelian gauge theory (its gauge symmetry, particle content, and Lagrangian, Yukawa couplings, CKM matrix, 3 generations), spontaneous symmetry breaking: global vs local symmetries (Goldstone's Theorem vs Higgs Mechanism; mass generation for bosons and fermions), neutrino sector (including righthanded neutrinos?), effective field theory, Feynman rules (Standard Model propagators and vertices), gauge and global anomalies, strong CP problem, renormalization group (beta functions, asymptotic freedom, quark confinement, mesons, baryons, Higgs instability, hierarchy problem), unexplained puzzles in the SM, and surprising/intriguing aspects of SM structure that hint at a deeper picture. 
Numerical Methods (2022/2023)
This course teaches basic numerical methods that are widely used across many fields of physics. The course is based on the Julia programming language. Topics include an introduction to Julia, linear algebra, Monte Carlo methods, differential equations, and are based on applications by researchers at Perimeter. The course will also teach principles of software engineering ensuring reproducible results. 
Gravitational Physics (2022/2023)
The main objective of this course is to discuss some advanced topics in gravitational physics and its applications to high energy physics. Necessary mathematical tools will be introduced on the way. These mathematical tools will include a review of differential geometry (tensors, forms, Lie derivative), vielbeins and Cartan’s formalism, hypersurfaces, GaussCodazzi formalism, and variational principles (EinsteinHilbert action & GibbonsHawking term). Several topics in black hole physics including the Kerr solution, black hole astrophysics, higherdimensional black holes, black hole thermodynamics, Euclidean action, and Hawking radiation will be covered. Additional advanced topics will include domain walls, brane world scenarios, KaluzaKlein theory and KK black holes, GregoryLaflamme instability, and gravitational instantons

Mathematical Physics (2022/2023)
This course will cover the mathematical structure underlying classical gauge theory. Previous knowledge of differential geometry is not required. Topics covered in the course include: introduction to manifolds, symplectic manifolds, introduction to Lie groups and Lie algebras; deformation quantisation and geometric quantisation; the matematical structure of field theories; scalar field theory; geometric picture of YangMills theory; symplectic reduction. If time permits, we may also look at the description of gauge theory in terms of principal bundles and the topological aspects of gauge theory. 
Quantum Foundations (2022/2023)
This course will cover the basics of Quantum Foundations under three main headings. Part I – Novel effects in Quantum Theory. A number of interesting quantum effects will be considered. (a) Interferometers: MachZehnder interferometer, ElitzurVaidman bomb tester, (b) The quantumZeno effect. (c) The no cloning theorem. (d) Quantum optics (single mode). HongOuMandel dip. Part II Conceptual and interpretational issues. (a) Axioms for quantum theory for pure states. (b) VonNeumann measurement model. * (c) The measurement (or reality) problem. (d) EPR Einstein’s 1927 remarks, the EinsteinPodolskyRosen argument. (e) Bell’s theorem, nonlocality without inequalities. The Tirolson bound. (f) The KochenSpecker theorem and related work by Spekkens (g) On the reality of the wavefunction: Epistemic versus ontic interpretations of the wavefunction and the PuseyBarrettRudolph theorem proving the reality of the wave function. (h) Gleason’s theorem. (i) Interpretations. The landscape of interpretations of quantum theory (the Harrigen Spekkens classification). The de BroglieBohm interpretation, the many worlds interpretation, wavefunction collapse models, the Copenhagen interpretation, and QBism. Part III Structural issues. (a) Reformulating quantum theory: I will look at some reformulations of quantum theory and consider the light they throw on the structure of quantum theory. These may include time symmetric quantum theory and weak measurements (Aharonov et al), quantum Bayesian networks, and the operator tensor formalism. (b) Generalised probability theories: These are more general frameworks for probabilistic theories which admit classical and quantum as special cases. (c) Reasonable principles for quantum theory: I will review some of the recent work on reconstructing quantum theory from simple principles. (d) Indefinite causal structure and indefinite causal order. Finally I will conclude by looking at (i) the close link between quantum foundations and quantum information and (ii) possible future directions in quantum gravity motivated by ideas from quantum foundations.

Symmetries Graduate School 2023
The goal of this Winter School on Symmetries is to introduce graduate students to the effectiveness of symmetry principles across subjects and energy scales.
From Noether’s celebrated theorem to the development of the standard model of particle physics, from Landau’s to Wilson’s classification of phases of matter and phase transitions, symmetries have been key to 20th century physics. But in the last decades novel and more subtle incarnations of the symmetry principle have shown us the way to unlocking new and unexpected phases of quantum matter, infrared and holographic properties of the quantum gravitational interaction, as well as to advancements in pure mathematics to mention a few.
The Graduate Winter School on Symmetries will introduce students and young researchers to a variety of applications of the symmetry principle. These will be chosen across contemporary research topics in both theoretical physics and mathematics. Our goal is to create a synergistic environment where ideas and techniques can ultimately spread across disciplines. This will be achieved through a combination of minicourses, colloquia, and discussion sessions led in collaboration with the students themselves.
https://pirsa.org/C23008
Territorial Land AcknowledgementPerimeter 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.

Statistical Physics (2022/2023)
The course begins by discussing several topics in equilibrium statistical physics including phase transitions and the renormalization group. The second part of the course covers nonequilibrium statistical physics including kinetics of aggregation, spin dynamics, population dynamics, and complex networks.

Quantum Field Theory II (2022/2023)
The course has three parts. In the first part of the course, the path integral formulation of nonrelativistic quantum mechanics and the functional integral formulation of quantum field theory are developed. The second part of the course covers renormalization and the renormalization group. Finally, nonabelian gauge theories are quantized using functional integral techniques.

Special Topics in Physics  QFT2: Quantum Electrodynamics (Cliff Burgess)
This course uses quantum electrodynamics (QED) as a vehicle for covering several more advanced topics within quantum field theory, and so is aimed at graduate students that already have had an introductory course on quantum field theory. Among the topics hoped to be covered are: gauge invariance for massless spin1 particles from special relativity and quantum mechanics; Ward identities; photon scattering and loops; UV and IR divergences and why they are handled differently; effective theories and the renormalization group; anomalies.

New Frontiers in Machine Learning and Quantum
This workshop will bring together a group of young trendsetters working at the frontier of machine learning and quantum information. The workshop will feature two days of talks, and ample time for participants to interact and form new collaborations in the inspiring environment of the Perimeter Institute. Topics will include machine learning, quantum field theory, quantum information, and unifying theoretical concepts.
Territorial Land AcknowledgementPerimeter 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.