Cosmology and Particle Physics Lecture
Cliff Burgess - McMaster University
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Cosmology Theory
Zach Weiner - Perimeter Institute for Theoretical Physics
Cosmology Theory
Zach Weiner - Perimeter Institute for Theoretical Physics
PSI 2019/2020 - Quantum Field Theory I (Wohns/Xu) - Lecture 12
Gang Xu - Perimeter Institute for Theoretical Physics , Dan Wohns - Perimeter Institute for Theoretical Physics
PSI 2019/2020 - Statistical Mechanics (Vieira) - Lecture 14
Pedro Vieira - Perimeter Institute for Theoretical Physics
PSI 2019/2020 - Quantum Field Theory (Wohns/Xu) - Lecture 11
Dan Wohns - Perimeter Institute for Theoretical Physics , Gang Xu - Perimeter Institute for Theoretical Physics
PSI 2019/2020 - Statistical Mechanics (Vieira) - Lecture 13
Pedro Vieira - Perimeter Institute for Theoretical Physics
Central extension in gravity
Linqing Chen - Austrian Academy of Sciences
The asymptotic symmetry charge algebra of certain class of spacetimes could have a nontrivial central extension, which measures the non-equivariance of the charges of the large gauge transformations. The Cardy formula of the dual CFT has been famously used to derive black hole entropy. However, it…
Equivariant localization and Atiyah-Segal completion for Hochschild and cyclic homology
Harrison Chen - Cornell University
There is a close relationship between derived loop spaces, a geometric object, and Hochschild homology, a categorical invariant, made possible by derived algebraic geometry, thus allowing for both intuitive insights and new computational tools. In the case of a quotient stack, we discuss a "Jordan…
PSI 2019/2020 - Statistical Mechanics (Vieira) - Lecture 12
Pedro Vieira - Perimeter Institute for Theoretical Physics
PSI 2019/2020 - Quantum Field Theory (Wohns/Xu) - Lecture 10
Dan Wohns - Perimeter Institute for Theoretical Physics , Gang Xu - Perimeter Institute for Theoretical Physics
Gabriela González, Louisiana State University
Gabriela Gonzalez - Louisiana State University
Albert Einstein predicted a century ago the existence of gravitational waves – ripples in the fabric of spacetime moving at the speed of light. It was believed that these ripples were so faint that no experiment would ever be precise enough to detect them. But in September 2015, LIGO did exactly…
Equity, Diversity, and Inclusion for Scientists
Lisa Willis - University of Alberta
There is a profound lack of diversity in science labs and classrooms, which has a negative impact on productivity. Scientific research demonstrates that diverse groups are more creative and better able to solve problems. Though the perception is that things are improving, NSERC’s recently released…
The Cohomology of Groups (Johnson-Freyd/Guo) - Lecture 4
Meng Guo - University of Illinois Urbana-Champaign , Theo Johnson-Freyd - Dalhousie University