Duality in Entanglement Enabling a Test of Quantum Indistinguishability Unaffected by Interactions

S. Bose and D. Home
Phys. Rev. Lett. 110, 140404 – Published 3 April 2013
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Abstract

We point out an earlier unnoticed implication of quantum indistinguishability, namely, a property which we call “dualism” that characterizes the entanglement of two identical particles (say, two ions of the same species)—a feature which is absent in the entanglement of two nonidentical particles (say, two ions of different species). A crucial application of this property is that it can be used to test quantum indistinguishability without bringing the relevant particles together, thereby avoiding the effects of mutual interaction. This is in contrast to the existing tests of quantum indistinguishability. Such a scheme, being independent of the nature and strength of mutual interactions of the identical particles involved, has potential applications, including the probing of the transition from quantum indistinguishability to classical distinguishability.

  • Figure
  • Received 18 August 2011

DOI:https://doi.org/10.1103/PhysRevLett.110.140404

© 2013 American Physical Society

Authors & Affiliations

S. Bose1 and D. Home2

  • 1Department of Physics and Astronomy, University College London, Gower Street, London WC1E 6BT, United Kingdom
  • 2CAPSS, Physics Department, Bose Institute, Salt Lake, Sector V, Kolkata 700097, India

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Issue

Vol. 110, Iss. 14 — 5 April 2013

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