Two Topics on the Accelerating Universe
Gregory Gabadadze - New York University (NYU)
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Dynamics of Linear Perturbations in Modified Gravity Theories
Alessandra Silvestri - Leiden University
Dark Energy from variation of the fundamental scale
Christof Wetterich - Universität Heidelberg
Advanced Topics in Cosmology
Viatcheslav Mukhanov - Ludwig-Maximilians-Universität München (LMU)
Advanced Topics in Cosmology
Viatcheslav Mukhanov - Ludwig-Maximilians-Universität München (LMU)
Quantum Algorithms Using Clebsch-Gordan Transforms
Dave Bacon - University of Washington
New Phases of N = SYM
Sean Hartnoll - Stanford University
Advanced Topics in Cosmology 4B
Viatcheslav Mukhanov - Ludwig-Maximilians-Universität München (LMU)
Advanced Topics in Cosmology
Viatcheslav Mukhanov - Ludwig-Maximilians-Universität München (LMU)
4D Cosmos from 5D Chaos
Raman Sundrum - University of Maryland, College Park
Geometry of Particle Physics
Martijn Wijnholt - Max-Planck Gesellschaft
Gapped condensation in higher categories
Theo Johnson-Freyd - Dalhousie University
Idempotent (aka Karoubi) completion is used throughout mathematics: for instance, it is a common step when building a Fukaya category. I will explain the n-category generalization of idempotent completion. We call it "condensation completion" because it answers the question of classifying the gapped…
PSI 2019/2020 - Chern-Simons Theory Part 1 - Lecture 13
Kevin Costello - Perimeter Institute for Theoretical Physics
PSI 2019/2020 - Quantum Gravity Part 1 - Lecture 6
Bianca Dittrich - Perimeter Institute for Theoretical Physics
The trinity of relational quantum dynamics
Philipp Hoehn - Okinawa Institute of Science and Technology Graduate University
In order to solve the problem of time in quantum gravity, various approaches to a relational quantum dynamics have been proposed. In this talk, I will exploit quantum reduction maps to illustrate a previously unknown equivalence between three of the well-known ones: (1) relational observables in the…
Categorified sheaf theory and the spectral Langlands TQFT
It is expected that the Betti version of the geometric Langlands program should ultimately be about the equivalence of two 4-dimensional topological field theories. In this talk I will give an overview of ongoing work in categorified sheaf theory and explain how one can use it to describe the…
Holomorphic-topological twists and TFT
Dylan Butson - University of Oxford
I'll explain the TFT perspective on holomorphic-topological twists of 3d N=4 and 4d N=2 theories, and outline some connections between the topics discussed in Justin and Davide's previous lectures, and various ongoing work of Justin, Philsang, Kevin, Davide, Tudor, myself, etc.
Area law of non-critical ground states in 1D long-range interacting systems
Tomotaka Kuwahara - RIKEN
The area law for entanglement provides one of the most important connections between information theory and quantum many-body physics. It is not only related to the universality of quantum phases, but also to efficient numerical simulations in the ground state (i.e., the lowest energy state)…
Fundamental Constraints for Fundamental Theories
Rachel Rosen - Carnegie Mellon University
As our understanding of the universe and its fundamental building blocks extends to shorter and shorter distances, experiments capable of probing these scales are becoming increasingly difficult to construct. Fundamental particle physics faces a potential crisis: an absence of data at the shortest…
PSI 2019/2020 - Computational Physics - Lecture 15
Erik Schnetter - Perimeter Institute for Theoretical Physics
PSI 2019/2020 - Quantum Gravity Part 1 - Lecture 5
Bianca Dittrich - Perimeter Institute for Theoretical Physics
PSI 2019/2020 - Chern-Simons Theory Part 1 - Lecture 12
Kevin Costello - Perimeter Institute for Theoretical Physics