Preparation and entanglement purification of qubits through Zeno-like measurements

Hiromichi Nakazato*, Makoto Unoki, Kazuya Yuasa

*この研究の対応する著者

研究成果: Article査読

52 被引用数 (Scopus)

抄録

A mechanism to purify quantum states by Zeno-like measurements was discussed and was applied to simple qubit systems. A pure state was extracted in a quantum system by a series of measurements on another quantum system in interaction with the former. Entanglement purification was one of the application in the purification method. An extension of this method was in the entanglement between two spatially separated qubits which was necessary for quantum communication and quantum teleportation.

本文言語English
論文番号012303
ページ(範囲)012303-1-012303-12
ジャーナルPhysical Review A - Atomic, Molecular, and Optical Physics
70
1
DOI
出版ステータスPublished - 2004 7月

ASJC Scopus subject areas

  • 原子分子物理学および光学

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