論文

査読有り
2015年2月

Macroscopic quantum information processing using spin coherent states

OPTICS COMMUNICATIONS
  • Tim Byrnes
  • ,
  • Daniel Rosseau
  • ,
  • Megha Khosla
  • ,
  • Alexey Pyrkov
  • ,
  • Andreas Thomasen
  • ,
  • Tetsuya Mukai
  • ,
  • Shinsuke Koyama
  • ,
  • Ahmed Abdelrahman
  • ,
  • Ebubechukwu Ilo-Okeke

337
開始ページ
102
終了ページ
109
記述言語
英語
掲載種別
研究論文(学術雑誌)
DOI
10.1016/j.opicom.2014.08.017
出版者・発行元
ELSEVIER SCIENCE BV

Previously a new scheme of quantum information processing based on spin coherent states of two component Bose-Einstein condensates was proposed (Byrnes et al. Phys. Rev. A 85, 40306(R)). In this paper we give a more detailed exposition of the scheme, expanding on several aspects that were not discussed in full previously. The basic concept of the scheme is that spin coherent states are used instead of qubits to encode qubit information, and manipulated using collective spin operators. The scheme goes beyond the continuous variable regime such that the full space of the Bloch sphere is used We construct a general framework for quantum algorithms to be executed using multiple spin coherent states, which are individually controlled. We illustrate the scheme by applications to quantum information protocols, and discuss possible experimental implementations. Decoherence effects are analyzed under both general conditions and for the experimental implementation proposed. (C) 2014 Elsevier B.V. All rights reserved.

Web of Science ® 被引用回数 : 32

リンク情報
DOI
https://doi.org/10.1016/j.opicom.2014.08.017
Web of Science
https://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcAuth=JSTA_CEL&SrcApp=J_Gate_JST&DestLinkType=FullRecord&KeyUT=WOS:000345689100015&DestApp=WOS_CPL
ID情報
  • DOI : 10.1016/j.opicom.2014.08.017
  • ISSN : 0030-4018
  • eISSN : 1873-0310
  • Web of Science ID : WOS:000345689100015

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