Unambiguous quantum-state filtering

Masahiro Takeoka, Masashi Ban, Masahide Sasaki

Research output: Contribution to journalArticlepeer-review

8 Citations (Scopus)


The measurement scenario of unambiguous quantum-state filtering where one particular signal is unambiguously extracted from a set of non-orthogonal signals is discussed. The maximum detection probability and its corresponding measurement operators are given by simple expressions although the formalism includes mixed state signals. As an application, the sensing of decoherence in quantum channels is considered.

Original languageEnglish
Article number012307
Pages (from-to)012307/1-012307/7
JournalPhysical Review A - Atomic, Molecular, and Optical Physics
Issue number1
Publication statusPublished - 2003 Jul
Externally publishedYes

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics


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