Kraus representation in the presence of initial correlations

Hiroyuki Hayashi, Gen Kimura, and Yukihiro Ota
Phys. Rev. A 67, 062109 – Published 26 June 2003
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Abstract

We examine the validity of the Kraus representation in the presence of initial correlations and show that it is assured only when a joint dynamics is locally unitary.

  • Received 12 March 2003

DOI:https://doi.org/10.1103/PhysRevA.67.062109

©2003 American Physical Society

Authors & Affiliations

Hiroyuki Hayashi*, Gen Kimura†, and Yukihiro Ota‡

  • Department of Physics, Waseda University, Tokyo 169-8555, Japan

  • *Electronic address: hayashi@hep.phys.waseda.ac.jp
  • †Electronic address: gen@hep.phys.waseda.ac.jp
  • ‡Electronic address: ota@suou.waseda.jp

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Vol. 67, Iss. 6 — June 2003

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