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This article is cited in 3 scientific papers (total in 3 papers)
QUANTUM INFORMATION SCIENCE
Quantized optical mode in a phase-switching feedback loop
V. A. Tomilin, L. V. Il'ichev Institute of Automation and Electrometry, Siberian Branch of Russian Academy of Sciences, Novosibirsk
Abstract:
We investigate the steady state of quantized monochromatic cavity mode excited by coherent pumping and placed in a feedback loop that changes the mode phase by $\pi$ upon each detection of the photon that left the cavity. Such type of feedback is used for fighting decoherence of Schrödinger cat states. Results of numerical calculations of the Glauber $P$-function for different detunings of mode frequency from pumping frequency are presented. Qualitative explanation for certain peculiarities of the behavior of the $P$-function is provided. We also suggest a simplified model that gives accurate description of the behavior of the system in the case where external coherent pumping is far detuned from the cavity eigenfrequency.
Received: 08.10.2014
Citation:
V. A. Tomilin, L. V. Il'ichev, “Quantized optical mode in a phase-switching feedback loop”, Pis'ma v Zh. Èksper. Teoret. Fiz., 100:11 (2014), 858–862; JETP Letters, 100:11 (2014), 756–760
Linking options:
https://www.mathnet.ru/eng/jetpl4492 https://www.mathnet.ru/eng/jetpl/v100/i11/p858
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