Bridging discrete and continuous variables in quantum information

Jonas S. Neergaard-Nielsen, Makoto Takeuchi, Kentaro Wakui, Hiroki Takahashi, Kazuhiro Hayasaka, Masahiro Takeoka, Masahide Sasaki

研究成果: Article

1 被引用数 (Scopus)

抄録

A study was conducted to bridge discrete and continuous variables (CV) in quantum information. The generated states were best understood in terms of continuous variables when looked at individually. They consisted of contributions from a range of different photon number states and occupied a larger space than the two-dimensional qubit space. It was demonstrated they were reduced to the same squeezed vacuum or squeezed photon superposition space. It was observed the qubit state was conveniently visualized on a Poincaré sphere with the two basis states represented on the north and south poles, while squeezed states were represented by their continuous distributions in a phase space of the two conjugate variables.

本文言語English
ページ46
ページ数1
21
No.12
専門出版物Optics and Photonics News
DOI
出版ステータスPublished - 2010 12月
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
  • 凝縮系物理学
  • 電子工学および電気工学

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