Physics

Abstract: Informally, a quantum cellular automaton (QCA) describes some discrete-time local dynamics of a quantum system.  Formally, a QCA is a *-automoprhism of the algebra of local operators.  Local quantum circuits provide one example of QCA, but...

Abstract: TBA

Abstract: Type II string theory has BPS brane bound states that carry two charges. I will show that their microcanonical ensemble average corresponds to a spherical black hole mimicker, which possesses a long throat, shares the same asymptotic data...

Abstract: We focus on understanding how the synchrotron emission morphology of astrophysical jet phenomena is influenced by physical properties of the relativistic plasma within the jet stream. To achieve this, we compare observational data in multi...

Abstract: The appearance of chiral symmetry from lattice fermions has been a non-trivial issue over many years. We apply the idea of "emanant chiral symmetry" by Seiberg and Shao to study the "emanant chiral supersymmetry" on the 1+1 dimensional...

Abstract: We discuss the role of non-invertible symmetries in RG flows between Virasoro minimal models. They give infinitely many new constraints by generalizing the notion of anomaly matching to non-invertible symmetries, leading to the predictions...

Abstract: I will review a series of results regarding the extremal limit of generic black holes in both Einstein and Einstein-Maxwell theory. We will see that in AdS, at low temperatures, large tidal forces arise at the horizon. These tidal forces...

Abstract: I will describe the relationship between the Schur indices of 4d N=2 SQFTs of class S and the quantization of Chern-Simons theory with complex gauge group.

Abstract: Celebrating a hundred years of quantum mechanics, the United Nations has declared 2025 the International Year of Quantum Science and Technology. This is not only an occasion to step back and marvel at the progress, it also raises the...

Abstract: A new manifestly spacetime-supersymmetric prescription for superstring amplitude computations is given using the pure spinor formalism which does not contain subtleties from poles in the pure spinor ghosts. This super-Poincare covariant...