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- University of WaterlooCA68 papers
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- Centre National de la Recherche ScientifiqueFR10 papers
- École Normale Supérieure de LyonFR10 papers
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14 papers · 1 filter
New Taub-NUT-Reissner-Nordström spaces in higher dimensions
Robert B. Mann, Cristian Stelea
We construct new charged solutions of the Einstein-Maxwell field equations with cosmological constant. These solutions describe the nut-charged generalisation of the higher dimensi…
On Superselection Rules in Bohm-Bell Theories
Samuel Colin, Thomas Durt, Roderich Tumulka
The meaning of superselection rules in Bohm-Bell theories (i.e., quantum theories with particle trajectories) is different from that in orthodox quantum theory. More precisely, the…
Information processing in generalized probabilistic theories
Jonathan Barrett
I introduce a framework in which a variety of probabilistic theories can be defined, including classical and quantum theories, and many others. From two simple assumptions, a tenso…
Anthropic reasoning in multiverse cosmology and string theory
Steven Weinstein
Anthropic arguments in multiverse cosmology and string theory rely on the weak anthropic principle (WAP). We show that the principle, though ultimately a tautology, is nevertheless…
Classicality in discrete Wigner functions
Cecilia Cormick, Ernesto F. Galvao, Daniel Gottesman +2
Gibbons et al. [Phys. Rev. A 70, 062101(2004)] have recently defined a class of discrete Wigner functions W to represent quantum states in a Hilbert space with finite dimension. We…
Entanglement in an expanding spacetime
J. L. Ball, I. Fuentes-Schuller, F. P. Schuller
We show that a dynamical spacetime generates entanglement between modes of a quantum field. Conversely, the entanglement encodes information concerning the underlying spacetime str…