Format results

13 talksCollection NumberC23026
Talk

Cosmology (2022/2023)
13 talksCollection NumberC23028Talk

Quantum Gravity (2022/2023)
13 talksCollection NumberC23025Talk

Mini introductory course on topological orders and topological quantum computing
2 talksCollection NumberC23023Talk

Causal Inference: Classical and Quantum
10 talksCollection NumberC23016Talk

Quantum Field Theory in Curved Spacetime
7 talksCollection NumberC23031Talk

Quantum Field Theory in Curved Spacetime (AM)  20230303
McMaster University 
Quantum Field Theory in Curved Spacetime (PM)  20230303
McMaster University 
Quantum Field Theory in Curved Spacetime (PM)  20230310
McMaster University 
Quantum Field Theory in Curved Spacetime (PM)  20230317
McMaster University 
Quantum Field Theory in Curved Spacetime (PM)  20230324
McMaster University 
Quantum Field Theory in Curved Spacetime (PM)  20230331
McMaster University 


Particle Physics (2022/2023)
13 talksCollection NumberC23013Talk







Particle Physics Lecture  230315
PIRSA:23030061 


Quantum Fields and Strings (2022/2023)
13 talksCollection NumberC23010Talk

Quantum Fields and Strings Lecture  230301
Perimeter Institute for Theoretical PhysicsPIRSA:23030015 
Quantum Fields and Strings Lecture  230302
Perimeter Institute for Theoretical PhysicsPIRSA:23030016 
Quantum Fields and Strings Lecture  230306
Perimeter Institute for Theoretical PhysicsPIRSA:23030017 
Quantum Fields and Strings Lecture  230308
Perimeter Institute for Theoretical PhysicsPIRSA:23030018 
Quantum Fields and Strings Lecture  230310
Perimeter Institute for Theoretical PhysicsPIRSA:23030019 
Quantum Fields and Strings Lecture  230313
Perimeter Institute for Theoretical PhysicsPIRSA:23030020 
Quantum Fields and Strings Lecture  230315
Perimeter Institute for Theoretical PhysicsPIRSA:23030021 
Quantum Fields and Strings Lecture  230320
Perimeter Institute for Theoretical PhysicsPIRSA:23030023


Strong Gravity (2022/2023)
13 talksCollection NumberC23012Talk

Quantum Information (2022/2023)
13 talksCollection NumberC23009Talk

Machine Learning for ManyBody Physics (2022/2023)
13 talksCollection NumberC23011Talk

Horizon entropy and the Einstein equation
4 talksCollection NumberC23029Talk

Horizon entropy and the Einstein equation  Lecture 20230221
University of Maryland, College Park 
Horizon entropy and the Einstein equation  Lecture 20230223
University of Maryland, College Park 
Horizon entropy and the Einstein equation  Lecture 20230228
University of Maryland, College Park 
Horizon entropy and the Einstein equation  Lecture 20230302
University of Maryland, College Park


AdS/CFT (2022/2023)
13 talksCollection NumberC23026We will cover the basics of the gauge/gravity duality, including some of the following aspects: holographic fluids, applications to condensed matter systems, entanglement entropy, and recent advances in understanding the black hole information paradox. 
Cosmology (2022/2023)
13 talksCollection NumberC23028This class is an introduction to cosmology. We'll cover expansion history of the universe, thermal history, dark matter models, and as much cosmological perturbation theory as time permits. 
Quantum Gravity (2022/2023)
13 talksCollection NumberC23025The main focus of this course is the exploration of the symmetry structure of General Relativity which is an essential step before any attempt at a (direct) quantization of GR. We will start by developing powerful tools for the analysis of local symmetries in physical theories (the covariant phase space method) and then apply it to increasingly complex theories: the parametrized particle, YangMills theory, and finally General Relativity. We will discover in which ways these theories have similar symmetry structures and in which ways GR is special. We will conclude by reviewing classical results on the uniqueness of GR given its symmetry structure and discuss why it is so hard to quantize it. In tutorials and homeworks, through the reading of articles and collegial discussions in the classroomas well as good old exercisesyou will explore questions such as "Should general relativity be quantized at all? Is a single graviton detactable (even in principle)?", "What is the meaning of the wave functions of the universe?", "Can we do physics without time?". 
Mini introductory course on topological orders and topological quantum computing
2 talksCollection NumberC23023In 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

Causal Inference: Classical and Quantum
10 talksCollection NumberC23016Can the effectiveness of a medical treatment be determined without the expense of a randomized controlled trial? Can the impact of a new policy be disentangled from other factors that happen to vary at the same time? Questions such as these are the purview of the field of causal inference, a generalpurpose science of cause and effect, applicable in domains ranging from epidemiology to economics. Researchers in this field seek in particular to find techniques for extracting causal conclusions from statistical data. Meanwhile, one of the most significant results in the foundations of quantum theory—Bell’s theorem—can also be understood as an attempt to disentangle correlation and causation. Recently, it has been recognized that Bell’s result is an early foray into the field of causal inference and that the insights derived from almost 60 years of research on his theorem can supplement and improve upon stateoftheart causal inference techniques. In the other direction, the conceptual framework developed by causal inference researchers provides a fruitful new perspective on what could possibly count as a satisfactory causal explanation of the quantum correlations observed in Bell experiments. Efforts to elaborate upon these connections have led to an exciting flow of techniques and insights across the disciplinary divide. This course will explore what is happening at the intersection of these two fields. zoom link: https://pitp.zoom.us/j/94143784665?pwd=VFJpajVIMEtvYmRabFYzYnNRSVAvZz09

Quantum Field Theory in Curved Spacetime
7 talksCollection NumberC23031The course is an introduction to quantum field theory in curved spacetime. Upon building up the general formalism, the latter is applied to several topics in the modern theory of gravity and cosmology where the quantum properties of fundamental fields play an essential role.
Topics to be covered:
1) Radiation of particles by moving mirrors
2) Hawking radiation of black holes
3) Production of primordial density perturbations and gravity waves during inflation
4) Statistical properties of the primordial spectra
Required prior knowledge:
Foundations of quantum mechanics and general relativity 
Particle Physics (2022/2023)
13 talksCollection NumberC23013This course will cover phenomenological studies and experimental searches for new physics beyond the Standard Model, including: natruralness, extra dimension, supersymmetry, dark matter (WIMPs and Axions), grand unification, flavour and baryogenesis. 
Quantum Fields and Strings (2022/2023)
13 talksCollection NumberC23010This survey course introduces three advanced topics in quantum fields and strings: anomalies, conformal field theory, and string theory. 
Strong Gravity (2022/2023)
13 talksCollection NumberC23012This course will introduce some advanced topics in general relativity related to describing gravity in the strong field and dynamical regime. Topics covered include properties of spinning black holes, black hole thermodynamics and energy extraction, how to define horizons in a dynamical setting, formulations of the Einstein equations as constraint and evolution equations, and gravitational waves and how they are sourced. 
Quantum Information (2022/2023)
13 talksCollection NumberC23009We will review the notion of information in the most possible general sense. Then we will revisit our definitions of entropy in quantum physics from an informational point of view and how it relates to information theory and thermodynamics. We will discuss entanglement in quantum mechanics from the point of view of information theory, and how to quantify it and distinguish it from classical correlations. We will derive Bell inequalities and discuss their importance, and how quantum information protocols can use entanglement as a resource. We will introduce other notions of quantum correlations besides entanglement and what distinguishes them from classical correlations. We will also analyze measurement theory in quantum mechanics, the notion of generalized measurements and their importance in the processing and transmission of information. We will introduce the notions of quantum circuits and see some of the most famous algorithms in quantum information processing, as well as in quantum cryptography. We will end with a little introduction to the notions of relativistic quantum information and a discussion about quantum ethics.

Machine Learning for ManyBody Physics (2022/2023)
13 talksCollection NumberC23011This course is designed to introduce machine learning techniques for studying classical and quantum manybody problems encountered in quantum matter, quantum information, and related fields of physics. Lectures will emphasize relationships between statistical physics and machine learning. Tutorials and homework assignments will focus on developing programming skills for machine learning using Python.

Horizon entropy and the Einstein equation
4 talksCollection NumberC23029This 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