2006/03/31 by А. А. Семенов, A. A. Semenov, Dmytro Vasylyev +5
Computer Science · Physics and Astronomy · #Quantum Information and Cryptography #Quantum and electron transport phenomena #Quantum optics and atomic interactions #physics.optics #quant-ph
paper · pdf · doi:10.1103/physreva.74.033803
published as Phys. Rev. A 74, 033803 (2006) · 13 pages, 7 figures; published version
openalex publication_date 2006/09/08 · arxiv created 2006/09/09 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
A phenomenological approach is developed that allows one to completely describe the effects of unwanted noise, such as the noise associated with absorption and scattering, in high-Q cavities. This noise is modeled by a block of beam splitters and an additional input-output port. The replacement schemes enable us to formulate appropriate quantum Langevin equations and input-output relations. It is demonstrated that unwanted noise renders it possible to combine a cavity input mode and the intracavity mode in a nonmonochromatic output mode. Possible applications to unbalanced and cascaded homodyning of the intracavity mode are discussed and the advantages of the latter method are shown.