Projective measurements via linear optics and photon detectors

研究成果: Article査読

2 被引用数 (Scopus)

抄録

The possibility of implementing a given photonic projective measurement with linear optics and photon detectors is discussed. This problem can be viewed as a single-shot discrimination of orthogonal pure quantum states. It is particularly shown that any two orthogonal states can be perfectly discriminated using only linear optics, photon counting, coherent ancillary states, and feedforward. This means that one can construct any binary projective measurement with these means, but without any nonclassical ancillary state. The statement holds in the asymptotic limit of a large number of these physical resources. To extend this result, we also address the problem of discriminating a simple set of three orthogonal states.

本文言語English
ページ(範囲)98-106
ページ数9
ジャーナルOptics and Spectroscopy (English translation of Optika i Spektroskopiya)
103
1
DOI
出版ステータスPublished - 2007 7
外部発表はい

ASJC Scopus subject areas

  • 電子材料、光学材料、および磁性材料
  • 原子分子物理学および光学

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