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Axion-like Relics: New Constraints from Old Comagnetometer Data
Abstract: TBD
Oct 27, 2020
Asymptotic symmetries and celestial CFT
Universal relationships between asymptotic symmetries, QFT soft theorems, and low energy observables have reinvigorated attempts at flat space holography. In this talk, I will review recent advances in the celestial...
Oct 27, 2020
Beyond BCS: An Exact Model for Superconductivity and Mottness
High-temperature superconductivity in the cuprates remains an unsolved problem because the cuprates start off their lives as Mott insulators in which no organizing principle such a Fermi surface can be...
Oct 27, 2020
On random circuits and their uses in compilation
I will review work by myself and others in recent years on the use of randomization in quantum circuit optimization. I will present general results showing that any deterministic compiler...
Oct 28, 2020
Measurement of quantum fields in curved spacetimes
A standard account of the measurement chain in quantum mechanics involves a probe (itself a quantum system) coupled temporarily to the system of interest. Once the coupling is removed, the...
Oct 28, 2020
Nilpotent Slodowy slices and W-algebras
To any vertex algebra one can attach in a canonical way a certain Poisson variety, called the associated variety. Nilpotent Slodowy slices appear as associated varieties of admissible (simple) W-algebras...
Oct 29, 2020
Moving Closer to a Detection of nHz-frequency Gravitational Waves with NANOGrav
Millisecond Pulsars (MSPs) have become reliable and extremely stable workhorses of modern astronomy and physics. The North American Nanohertz Observatory for Gravitational Waves, or NANOGrav, has been observing growing numbers...
Oct 29, 2020
Borcherds algebras and 2d string theory
Borcherds Kac-Moody (BKM) algebras are a generalization of familiar Kac-Moody algebras with imaginary simple roots. On the one hand, they were invented by Borcherds in his proof of the monstrous...
Oct 29, 2020
A note on dual gravitational charges
Dual gravitational charges (DGCs) have been originally computed in the first-order formalism by means of covariant phase space methods using tetrad variables. I show i) why DGCs do not arise...
Oct 29, 2020