論文

査読有り
2014年6月

Theory of Single-Shot Phase Contrast Imaging in Spinor Bose-Einstein Condensates

PHYSICAL REVIEW LETTERS
  • Ebubechukwu O. Ilo-Okeke
  • ,
  • Tim Byrnes

112
23
開始ページ
233602
終了ページ
記述言語
英語
掲載種別
研究論文(学術雑誌)
DOI
10.1103/PhysRevLett.112.233602
出版者・発行元
AMER PHYSICAL SOC

We introduce a theoretical framework for single-shot phase contrast imaging (PCI) measurements of spinor Bose-Einstein condensates (BECs). Our model allows for the simple calculation of the quantum backaction resulting from the measurement, and the amount of information that is read out. We find that there is an optimum time G tau similar to 1/N for the light-matter interaction (G is the ac Stark shift frequency, N is the number of particles in the BEC), where the maximum amount of information can be read out from the BEC. A universal information-disturbance tradeoff law is an element of(F)is an element of(G) proportional to 1/N-2 is found where is an element of(F) is the amount of backaction and is an element of(G) is the estimation error. The PCI measurement can also be found to be a direct probe of the quantum fluctuations of the BEC, via the noise of the PCI signal.

Web of Science ® 被引用回数 : 22

リンク情報
DOI
https://doi.org/10.1103/PhysRevLett.112.233602
Web of Science
https://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcAuth=JSTA_CEL&SrcApp=J_Gate_JST&DestLinkType=FullRecord&KeyUT=WOS:000337345600007&DestApp=WOS_CPL
ID情報
  • DOI : 10.1103/PhysRevLett.112.233602
  • ISSN : 0031-9007
  • eISSN : 1079-7114
  • Web of Science ID : WOS:000337345600007

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