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Luke Santi Award winner inspired by the science behind the fiction
It started with an unzipped schoolbag and a spark of imagination. When Joscelyn van der Veen was in fifth grade, her schoolbag came unzipped. Yet she was certain – positive...
New ALP probes from light meson decays
Rare meson decays are among the most sensitive probes of both heavy and light new physics. Among them, new physics searches using kaons and pions benefit from their small total...
Nov 15, 2022
Causality and Ideal Measurements of Smeared Fields in Quantum Field Theory
The usual quantum mechanical description of measurements, unitary kicks, and other local operations has the potential to produce pathological causality violations in the relativistic setting of quantum field theory (QFT)...
Nov 17, 2022
The Future of Numerical Relativity: Gravitational Memory, BMS Frames, and More
As was realized by Bondi, Metzner, van der Burg, and Sachs (BMS), the symmetry group of asymptotic infinity is not the Poincaré group, but an infinite-dimensional group called the BMS...
Nov 17, 2022
Luke Santi Award winner lauded for service and science
Ask a 10-year-old what they want to be when they grow up and you could get any kind of reply: An actor. A veterinarian. A hockey player. A nurse. Still...
Entanglement features of random neural network quantum states
Neural networks offer a novel approach to represent wave functions for solving quantum many-body problems. But what kinds of quantum states are efficiently represented by neural networks? In this talk...
Nov 18, 2022
An operator-algebraic formulation of self-testing
We give a new definition of self-testing for correlations in terms of states on C*-algebras. We show that this definition is equivalent to the standard definition for any class of...
Nov 16, 2022
Magic at the meeting points
It was late 2013, and Perimeter Institute quantum matter researcher Roger Melko had noticed something interesting about the quantum materials he was modelling. Melko simulates “strongly correlated lattices,” exotic materials...
Toys can't play: physical agents in Spekkens' theory
Information is physical, and for a physical theory to be universal, it should model observers as physical systems, with concrete memories where they store the information acquired through experiments and...
Oct 14, 2022
Bootstrapping N = 4 sYM correlators using integrability
In this talk we combine integrability and conformal bootstrap to learn about correlation functions of planar maximally supersymmetric Yang- Mills theory. Focusing on correlators of four stress-tensor multiplets, we first...
Oct 14, 2022