Exact analysis of quantum filter for systems driven by two counter-propagating single-photon states

Zhiyuan Dong, Guofeng Zhang, Nina Amini

Research output: Journal article publicationJournal articleAcademic researchpeer-review


In this paper, quantum filtering for a two-level atom, which is illuminated by two counter-propagating single-photon pulses, has been considered. The scenario is equivalent to that the two-level atom is driven by two input light field channels, each of which contains a single-photon. Based on two homodyne detection measurements, filtering equations in the Schrödinger picture have been derived explicitly.

Original languageEnglish
Pages (from-to)11749-11754
Number of pages6
Issue number1
Publication statusPublished - Jul 2017


  • homodyne detection
  • quantum filtering
  • quantum trajectories
  • single-photon states
  • stochastic master equations
  • Wiener process

ASJC Scopus subject areas

  • Control and Systems Engineering

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