Nonlinear and quantum optics with liquid crystals

Lukishova, Svetlana G.

doi:10.1088/1742-6596/497/1/012008

Cited by 1 publication

(1 citation statement)

References 69 publications

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“…Although quantum optics provides the tools to study the physics that occur in a laboratory where field modes are manipulated through linear optical gates and ultimately interact with single atoms, clouds of atoms [86,87] or crystals [88,89], in the past years it has become evident that its principles, language and techniques can be used to describe a myriad of phenomena seemingly pertaining to completely disconnected fields. For example, quantum squeezed states naturally arise in the Unruh effect [75] and Hawking effect 19 [90,91], in particle creation phenomena due to an expanding universe [92], as well as particle creation due to moving boundary conditions [93,94,95].…”

Section: List Of Prominent Quantum Optical Statesmentioning

confidence: 99%

Introduction to gravitational redshift of quantum photons propagating in curved spacetime

Rodríguez

Schell

Bruschi

2023

J. Phys.: Conf. Ser.

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Gravitational redshift is discussed in the context of quantum photons propagating in curved spacetime. A brief introduction to modelling realistic photons is first presented and the effect of gravity on the spectrum computed for photons largely confined along the direction of propagation. It is then shown that redshift-induced transformations on photon operators with sharp momenta are not unitary, while a unitary transformation can be constructed for realistic photons with finite bandwidth. The unitary transformation obtained is then characterized as a multimode mixing operation, which is a generalized rotation of the Hilbert-space basis. Finally, applications of these results are discussed with focus on performance of quantum communication protocols, exploitation of the effects for quantum metrology and sensing, as well as potential for tests of fundamental science.

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