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Searches for other vacua II: A new Higgstory at the cosmological collider
Searches for other vacua II: A new Higgstory at the cosmological collider
Oct 18, 2019
Dark Matter in the Era of Gaia
Dark Matter in the Era of Gaia
Oct 22, 2019
Parallel programming in Python
Making use of modern multi-core computers (and multi-machine supercomputers) in Python can be achieved in a few different ways. I will present the built-in Python “multiprocessing” module approach, which tends...
Oct 22, 2019
Towards Recovering a Holographic Bulk from Entanglement
The AdS/CFT correspondence provides a remarkably useful tool for asking questions in quantum gravity, as it formulates a theory of quantum gravity in terms of an ordinary non-gravitational quantum field...
Oct 22, 2019
Symmetry indicators for topological materials
Many free-fermion topological phases can be diagnosed by analyzing a suitable collection of symmetry data. While the Fu-Kane parity criterion for topological insulators is an early example, the systematic generalization...
Oct 22, 2019
Kevin Costello admitted as honorary member of the Royal Irish Academy
Perimeter Faculty member Kevin Costello was admitted as an Honorary Member of the Royal Irish Academy during an online ceremony, the first virtual ceremony in the Academy’s 235 years. Originally...
Gabriela González, 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...
Oct 23, 2019
Equivariant localization and Atiyah-Segal completion for Hochschild and cyclic homology
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...
Oct 24, 2019
Central extension in gravity
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...
Oct 24, 2019
Faster quantum and classical SDP approximations for quadratic binary optimization
We give a quantum speedup for solving the canonical semidefinite programming relaxation for binary quadratic optimization. The class of relaxations for combinatorial optimization has so far eluded quantum speedups. Our...
Oct 28, 2019