Quantum theory of continuous feedback

Wiseman, H. M. (1994) Quantum theory of continuous feedback. Physical Review A, 49 3: 2133-2150. doi:10.1103/PhysRevA.49.2133

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Author Wiseman, H. M.
Title Quantum theory of continuous feedback
Journal name Physical Review A   Check publisher's open access policy
ISSN 1050-2947
2469-9926
Publication date 1994
Sub-type Article (original research)
DOI 10.1103/PhysRevA.49.2133
Open Access Status File (Publisher version)
Volume 49
Issue 3
Start page 2133
End page 2150
Total pages 18
Place of publication College Park, MD, United States
Publisher American Physical Society
Subject 3100 Physics and Astronomy
3107 Atomic and Molecular Physics, and Optics
Abstract A general theory of quantum-limited feedback for continuously monitored systems is presented. Two approaches are used, one based on quantum measurement theory and one on Hamiltonian system-bath interactions. The former gives rise to a stochastic non-Markovian evolution equation for the density operator, and the latter a non-Markovian quantum Langevin equation. In the limit that the time delay in the feedback loop is negligible, a simple deterministic Markovian master equation can be derived from either approach. Two special cases of interest are treated: feedback mediated by optical homodyne detection and self-excited quantum point processes.
Q-Index Code C1
Q-Index Status Provisional Code
Institutional Status UQ

Document type: Journal Article
Sub-type: Article (original research)
Collection: School of Mathematics and Physics
 
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Citation counts: TR Web of Science Citation Count  Cited 315 times in Thomson Reuters Web of Science Article | Citations
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