A. Kent

Publications166
h-index38
Citations6,433
Highly Influential Citations227
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Unitary representations of the Virasoro and super-Virasoro algebras
It is shown that a method previously given for constructing representations of the Virasoro algebra out of representations of affine Kac-Moody algebras yields the full discrete series of highest…
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Virasoro algebras and coset space models
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No signaling and quantum key distribution.
TLDR
A key distribution scheme provably secure against general attacks by a postquantum eavesdropper limited only by the impossibility of superluminal signaling is described, which stems from violation of a Bell inequality.
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Many worlds? : Everett, quantum theory, and reality
Many Worlds: an Introduction 1. WHY MANY WORLDS? 1. Decoherence and Ontology 2. Quasiclassical Realms 3. Macroscopic Superpositions, Decoherent Histories, and the Emergence of Hydrodynamical…
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Determinant Formulae and Unitarity for the N=2 Superconformal Algebras in Two-Dimensions or Exact Results on String Compactification
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Private randomness expansion with untrusted devices
TLDR
This work introduces a protocol for private randomness expansion with untrusted devices which is designed to take as input an initially private random string and produce as output a longerPrivate random string.
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Secure quantum signatures using insecure quantum channels
This work was supported by the UK Engineering and Physical Sciences Research Council (EPSRC) under EP/G009821/1 and EP/K022717/1. P.W. gratefully acknowledges support from the COST Action MP1006.…
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On the consistent histories approach to quantum mechanics
We review the consistent histories formulations of quantum mechanics developed by Griffiths, Omnès, and Gell-Mann and Hartle, and describe the classification of consistent sets. We illustrate some…
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Maximally Non-Local and Monogamous Quantum Correlations
We introduce a version of the chained Bell inequality for an arbitrary number of measurement outcomes and use it to give a simple proof that the maximally entangled state of two d-dimensional quantum…
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Unconditionally Secure Bit Commitment
  • A. Kent
  • Computer Science, Mathematics
  • 22 October 1998
TLDR
A new classical bit commitment protocol based on cryptographic constraints imposed by special relativity that evades the no-go results of Mayers, Lo and Chau by requiring from Alice a sequence of communications, including a post-revelation verification, each of which is guaranteed to be independent of its predecessor.
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