Parametrization of the feedback Hamiltonian realizing a pure steady state

研究成果: Article

35 引用 (Scopus)

抄録

Feedback control is expected to considerably protect quantum states against decoherence caused by interaction between the system and environment. Especially, Markovian feedback scheme developed by Wiseman can modify the properties of decoherence and eventually recover the purity of the steady state of the corresponding master equation. This paper provides a condition for which the modified master equation has a pure steady state. By applying this condition to a two-qubit system, we obtain a complete parametrization of the feedback Hamiltonian such that the steady state becomes a maximally entangled state.

元の言語English
記事番号024104
ジャーナルPhysical Review A - Atomic, Molecular, and Optical Physics
72
発行部数2
DOI
出版物ステータスPublished - 2005 8
外部発表Yes

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feedback control
purity
interactions

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics
  • Physics and Astronomy(all)

これを引用

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