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Entanglement-enhanced information transfer through strongly correlated systems and its application to optical lattices

Song Yang, Abolfazl Bayat, and Sougato Bose
Phys. Rev. A 84, 020302(R) – Published 4 August 2011

Abstract

We show that the inherent entanglement of the ground state of strongly correlated systems can be exploited for both classical and quantum communications. Our strategy is based on a single-qubit rotation that encodes information in the entangled nature of the ground state. In classical communication, our mechanism conveys more than one bit of information in each shot, just as dense coding does, without demanding long-range entanglement. In our scheme for quantum communication, the quality is higher than the widely studied attaching scenarios. Moreover, we propose to implement this way of communication in optical lattices.

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  • Received 14 January 2011

DOI:https://doi.org/10.1103/PhysRevA.84.020302

©2011 American Physical Society

Authors & Affiliations

Song Yang1,2, Abolfazl Bayat1, and Sougato Bose1

  • 1Department of Physics and Astronomy, University College London, London WC1E 6BT, United Kingdom
  • 2Key Laboratory of Quantum Information, University of Science and Technology of China, Hefei, 230026, People's Republic of China

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Issue

Vol. 84, Iss. 2 — August 2011

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