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4 papers · 2 filters
Relative entropy of coherent states on general CCR algebras
Henning Bostelmann, Daniela Cadamuro, Simone Del Vecchio
For a subalgebra of a generic CCR algebra, we consider the relative entropy between a general (not necessarily pure) quasifree state and a coherent excitation thereof. We give a un…
Existence and uniqueness of solutions of the semiclassical Einstein equation in cosmological models
Paolo Meda, Nicola Pinamonti, Daniel Siemssen
We prove existence and uniqueness of solutions of the semiclassical Einstein equation in flat cosmological spacetimes driven by a quantum massive scalar field with arbitrary coupli…
Fractional Quantum Numbers, Complex Orbifolds and Noncommutative Geometry
Varghese Mathai, Graeme Wilkin
This paper studies the conductance on the universal homology covering space of 2D orbifolds in a strong magnetic field, thereby removing the integrality constraint on the magne…
Asymptotic symmetries in the BV-BFV formalism
Kasia Rejzner, Michele Schiavina
We show how to derive asymptotic charges for field theories on manifolds with "asymptotic" boundary, using the BV-BFV formalism. We also prove that the conservation of said charges…