Purification through Zeno-Like Measurements

Hiromichi Nakazato*, Tomoko Takazawa, Kazuya Yuasa

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

15 Citations (Scopus)


A series of frequent measurements on a quantum system (Zeno-like measurements) is shown to result in the “purification” of another quantum system in interaction with the former. Even though the measurements are performed on the former system, their effect drives the latter into a pure state, irrespectively of its initial (mixed) state, provided certain conditions are satisfied.

Original languageEnglish
Pages (from-to)4
Number of pages1
JournalPhysical Review Letters
Issue number6
Publication statusPublished - 2003

ASJC Scopus subject areas

  • Physics and Astronomy(all)


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