Quantum light propagation in longitudinally inhomogeneous media as a spatial Lewis-Ermakov physical invariance

Autor:	Barral, David, Liñares, Jesús
Rok vydání:	2015
Předmět:	Quantum Physics
Druh dokumentu:	Working Paper
DOI:	10.1016/j.optcom.2015.09.052
Popis:	We study the propagation of quantum states of light in separable longitudinally inhomogeneous media. By means of the usual quantization approach this kind of media would lead to the unphysical result of quantum noise squeezing. This problem is solved by means of generalized canonical transformations in a comoving frame. Under these transformations the generator of propagation is a physical Lewis-Ermakov invariant in space which is quantized and, accordingly, a propagator consistent with experiments is obtained. Finally, we show that the net effect produced by propagation in these media is a quantum Gouy's phase with application in quantum interferometry. Comment: 5 pages, 3 figures
Databáze:	arXiv
Externí odkaz:	http://arxiv.org/abs/1506.08523 Zobrazit plný text záznamu View this record from Arxiv