Quantum filtering for systems driven by fields in single-photon states or superposition of coherent states

John Edward Gough, Matthew R. James, Hendra I. Nurdin, Joshua Combes

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81 Citations (Scopus)
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Abstract

We derive the stochastic master equations, that is to say, quantum filters, and master equations for an arbitrary quantum system probed by a continuous-mode bosonic input field in two types of nonclassical states. Specifically, we consider the cases where the state of the input field is a superposition or combination of (1) a continuous-mode, single-photon wave packet and vacuum, and (2) any continuous-mode coherent states.
Original languageEnglish
Article number043819
Number of pages14
JournalPhysical Review A
Volume86
Issue number4
DOIs
Publication statusPublished - 15 Oct 2012

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