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Description
| - A simple feedback system may be based on a beam splitter, a homodyne detection and a modulator. A single-mode treatment leads to violations of the commutation relations for an in-loop mode of the system. The lowering of noise of one quadrature has been labelled 'squashing'. Violations of the commutation relations do not occur when one does not replace the c-number parameter of displacement in the modulator with an operator, even though the latter should be directly proportional to a quadrature measurement behind the beam splitter. This outcome is not a quantum-mechanical expectation value, but a random variable. In this framework, we analyse this system and another one, where the beam-splitter transmittance is modulated through a feedback loop. To predict the squeezing of a quadrature, it is necessary to realize a consistent quantization of the feedback circuit.
- A simple feedback system may be based on a beam splitter, a homodyne detection and a modulator. A single-mode treatment leads to violations of the commutation relations for an in-loop mode of the system. The lowering of noise of one quadrature has been labelled 'squashing'. Violations of the commutation relations do not occur when one does not replace the c-number parameter of displacement in the modulator with an operator, even though the latter should be directly proportional to a quadrature measurement behind the beam splitter. This outcome is not a quantum-mechanical expectation value, but a random variable. In this framework, we analyse this system and another one, where the beam-splitter transmittance is modulated through a feedback loop. To predict the squeezing of a quadrature, it is necessary to realize a consistent quantization of the feedback circuit. (en)
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Title
| - An alternative to the quantization of electro-optic feedback
- An alternative to the quantization of electro-optic feedback (en)
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skos:prefLabel
| - An alternative to the quantization of electro-optic feedback
- An alternative to the quantization of electro-optic feedback (en)
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skos:notation
| - RIV/61989592:15310/12:33139202!RIV13-MSM-15310___
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http://linked.open...avai/riv/aktivita
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http://linked.open...avai/riv/aktivity
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http://linked.open...iv/cisloPeriodika
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http://linked.open...vai/riv/dodaniDat
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http://linked.open...aciTvurceVysledku
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http://linked.open.../riv/druhVysledku
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http://linked.open...iv/duvernostUdaju
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http://linked.open...titaPredkladatele
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http://linked.open...dnocenehoVysledku
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http://linked.open...ai/riv/idVysledku
| - RIV/61989592:15310/12:33139202
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http://linked.open...riv/jazykVysledku
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http://linked.open.../riv/klicovaSlova
| - electro-otic feedback, single-mode treatment, squeezing (en)
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http://linked.open.../riv/klicoveSlovo
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http://linked.open...odStatuVydavatele
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http://linked.open...ontrolniKodProRIV
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http://linked.open...i/riv/nazevZdroje
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http://linked.open...in/vavai/riv/obor
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http://linked.open...ichTvurcuVysledku
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http://linked.open...cetTvurcuVysledku
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http://linked.open...vavai/riv/projekt
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http://linked.open...UplatneniVysledku
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http://linked.open...v/svazekPeriodika
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http://linked.open...iv/tvurceVysledku
| - Křepelka, Jaromír
- Lukš, Antonín
- Peřinová, Vlasta
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http://linked.open...ain/vavai/riv/wos
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issn
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number of pages
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http://bibframe.org/vocab/doi
| - 10.1088/0031-8949/2012/T147/014024
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http://localhost/t...ganizacniJednotka
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