Quantum light propagation in longitudinally inhomogeneous waveguides as a spatial Lewis-Ermakov physical invariance
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- 作者：D. Barral ; david.barral@usc.es" class="auth_mail" title="E-mail the corresponding author ; J. Liñ ; ares ; suso.linares.beiras@usc.es" class="auth_mail" title="E-mail the corresponding author
- 关键词：Quantum optics ; Wave propagation ; Integrated optics
- 刊名：Optics Communications
- 出版年：2016
- 出版时间：15 January 2016
- 年：2016
- 卷：359
- 期：Complete
- 页码：61-65
- 全文大小：554 K
文摘
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Propagation of quantum light in longitudinally inhomogeneous media is studied.
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The usual quantization approach leads to an unphysical quantum noise squeezing.
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Canonical transformations in a comoving frame removes virtual squeezing.
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The generator of propagation is a spatial-type Lewis–Ermakov invariant.
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The net effect produced by propagation in these media is a quantum Gouy's phase.