Preparation and entanglement purification of qubits through Zeno-like measurements

Hiromichi Nakazato*, Makoto Unoki, Kazuya Yuasa

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

56 Citations (Scopus)


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.

Original languageEnglish
Article number012303
Pages (from-to)012303-1-012303-12
JournalPhysical Review A - Atomic, Molecular, and Optical Physics
Issue number1
Publication statusPublished - 2004 Jul

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics


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