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Talk
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Mathematical Physics Lecture (230505)
Kevin Costello Perimeter Institute for Theoretical Physics
PIRSA:23050012 -
Mathematical Physics Lecture (230503)
Kevin Costello Perimeter Institute for Theoretical Physics
PIRSA:23050011 -
Mathematical Physics Lecture (230501)
Kevin Costello Perimeter Institute for Theoretical Physics
PIRSA:23050010 -
Mathematical Physics Lecture (230421)
Kevin Costello Perimeter Institute for Theoretical Physics
PIRSA:23040050 -
Mathematical Physics Lecture (230419)
Kevin Costello Perimeter Institute for Theoretical Physics
PIRSA:23040049 -
Mathematical Physics Lecture (230404)
Kevin Costello Perimeter Institute for Theoretical Physics
PIRSA:23040077 -
Mathematical Physics Lecture (230417)
Kevin Costello Perimeter Institute for Theoretical Physics
PIRSA:23040048 -
Mathematical Physics Lecture (230414)
Kevin Costello Perimeter Institute for Theoretical Physics
PIRSA:23040047
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Causal Inference Lecture - 230412
Robert Spekkens Perimeter Institute for Theoretical Physics
PIRSA:23040003 -
Causal Inference Lecture - 230405
Robert Spekkens Perimeter Institute for Theoretical Physics
PIRSA:23040001 -
Causal Inference Lecture - 230403
Robert Spekkens Perimeter Institute for Theoretical Physics
PIRSA:23040000 -
Causal Inference Lecture - 230329
Robert Spekkens Perimeter Institute for Theoretical Physics
PIRSA:23030076 -
Causal Inference Lecture - 230322
Robert Spekkens Perimeter Institute for Theoretical Physics
PIRSA:23030074 -
Causal Inference Lecture - 230320
Robert Spekkens Perimeter Institute for Theoretical Physics
PIRSA:23030073 -
Causal Inference Lecture - 230315
Robert Spekkens Perimeter Institute for Theoretical Physics
PIRSA:23030072 -
Causal Inference Lecture - 230313
Robert Spekkens Perimeter Institute for Theoretical Physics
PIRSA:23030071
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Quantum Field Theory in Curved Spacetime (PM) - 2023-03-31
Sergey Sibiryakov McMaster University
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Quantum Field Theory in Curved Spacetime (PM) - 2023-03-24
Sergey Sibiryakov McMaster University
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Quantum Field Theory in Curved Spacetime (PM) - 2023-03-17
Sergey Sibiryakov McMaster University
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Quantum Field Theory in Curved Spacetime (PM) - 2023-03-10
Sergey Sibiryakov McMaster University
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Quantum Field Theory in Curved Spacetime (PM) - 2023-03-03
Sergey Sibiryakov McMaster University
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Quantum Field Theory in Curved Spacetime (AM) - 2023-03-03
Sergey Sibiryakov McMaster University
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AdS/CFT (2022/2023)
We 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. -
Mathematical Physics - Elective (2022/2023)
Title: An introduction to twistors Course Description: Twistor theory, introduced by Penrose many years ago, is a way to reformulate massless fields on four-dimensional space-time in terms of an auxiliary 6-dimensional complex manifold, called twistor space. This course will introduce twistor space and the Penrose correspondence (relating fields on twistor space and space-time), at both classical and quantum levels. We will discuss the twistor realization of self-dual Yang-Mills theory and of self-dual gravity. If time permits we will discuss the connection between twistors and celestial holography.
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Cosmology (2022/2023)
This 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. -
Less Travelled Path to the Dark Universe
In the last few decades the ΛCDM paradigm has been firmly established as the “Standard Model” of cosmology. While this phenomenological model is known to be a good fit for most existing data, some tensions have come to light in recent years. In addition, with the flood of data expected from current and future cosmological surveys and laboratory experiments, we will be in a position to go beyond such a phenomenological description by critically examining the pillars on which this model is grounded, and deepening our understanding of the fundamental physics from which it emerges.This in-person workshop on the Less Travelled Path to the Dark Universe (LTPDU) will bring together particle physicists and cosmologists from all over the world to address current questions and new directions in cosmological probes of fundamental physics — including the search for Dark Matter beyond the WIMP paradigm, the nature of Dark Energy, inflationary physics, neutrino physics, and the status and role of va...
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Less Travelled Path to the Dark Universe
In the last few decades the ΛCDM paradigm has been firmly established as the “Standard Model” of cosmology. While this phenomenological model is known to be a good fit for most existing data, some tensions have come to light in recent years. In addition, with the flood of data expected from current and future cosmological surveys and laboratory experiments, we will be in a position to go beyond such a phenomenological description by critically examining the pillars on which this model is grounded, and deepening our understanding of the fundamental physics from which it emerges.This in-person workshop on the Less Travelled Path to the Dark Universe (LTPDU) will bring together particle physicists and cosmologists from all over the world to address current questions and new directions in cosmological probes of fundamental physics — including the search for Dark Matter beyond the WIMP paradigm, the nature of Dark Energy, inflationary physics, neutrino physics, and the status and role of va...
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Climate Chaos: We’re Just Warming Up
Climate change, or more appropriately, the climate "crisis", looms upon our future and is poised to become one of the most significant challenges our current and future generations will face. This exhibition, titled "Climate Chaos: We’re Just Warming Up", gives you a science informed, starkly visual impression of what this crisis will mean for your lives in urban Indian megacities like Bangalore, Mumbai, Delhi, Chennai and Kolkata.The exhibition features interactive demonstrations and videos, like showing the link between carbon dioxide emissions and sea-level rise, the increase in frequency of extreme climate events due to a shifting global mean and a live demonstration of the discomfort of humid heat vs dry heat (a particularly coastal problem). The exhibition also features AI-generated speculative imagery of future scenarios of Indian cities, with and without climate intervention. Finally, the exhibition ends with "The Hope", demarcating steps and pointers for individuals, to build ...
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Climate Chaos: We’re Just Warming Up
Climate change, or more appropriately, the climate "crisis", looms upon our future and is poised to become one of the most significant challenges our current and future generations will face. This exhibition, titled "Climate Chaos: We’re Just Warming Up", gives you a science informed, starkly visual impression of what this crisis will mean for your lives in urban Indian megacities like Bangalore, Mumbai, Delhi, Chennai and Kolkata.The exhibition features interactive demonstrations and videos, like showing the link between carbon dioxide emissions and sea-level rise, the increase in frequency of extreme climate events due to a shifting global mean and a live demonstration of the discomfort of humid heat vs dry heat (a particularly coastal problem). The exhibition also features AI-generated speculative imagery of future scenarios of Indian cities, with and without climate intervention. Finally, the exhibition ends with "The Hope", demarcating steps and pointers for individuals, to build ...
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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
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Causal Inference: Classical and Quantum
Can 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 general-purpose 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 state-of-the-art 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
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Quantum Field Theory in Curved Spacetime
The 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 -
Resource Generation Camp
The Mathematical Olympiad Programme in India, which leads to the participation of Indian students in the International Mathematical Olympiad (IMO) is organized by the Homi Bhabha Centre for Science Education (HBCSE) on behalf of the National Board for Higher Mathematics (NBHM) of the Department of Atomic Energy (DAE), Government of India. This programme is one of the major initiatives undertaken by the NBHM. Its main purpose is to spot mathematical talent among pre-university students in the country.The first stage examination, the pre-Regional Mathematical Olympiad (PRMO) is a three hour examination with 30 questions. The Mathematics Teachers Association (India) coordinates this exam. Every year more than 100000 students write PRMO. The answer to each question is either a single-digit number or a two-digit number and will need to be marked on a machine-readable OMR response sheet.In order to prepare the question paper for PRMO, a Resource Generation Committee is set up by the National...
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Resource Generation Camp
The Mathematical Olympiad Programme in India, which leads to the participation of Indian students in the International Mathematical Olympiad (IMO) is organized by the Homi Bhabha Centre for Science Education (HBCSE) on behalf of the National Board for Higher Mathematics (NBHM) of the Department of Atomic Energy (DAE), Government of India. This programme is one of the major initiatives undertaken by the NBHM. Its main purpose is to spot mathematical talent among pre-university students in the country.The first stage examination, the pre-Regional Mathematical Olympiad (PRMO) is a three hour examination with 30 questions. The Mathematics Teachers Association (India) coordinates this exam. Every year more than 100000 students write PRMO. The answer to each question is either a single-digit number or a two-digit number and will need to be marked on a machine-readable OMR response sheet.In order to prepare the question paper for PRMO, a Resource Generation Committee is set up by the National...