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Quantum Phonon Optics: Coherent and Squeezed Atomic Displacements

X. Hu·Franco Nori
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Abstract

In this paper we investigate coherent and squeezed quantum states of phonons. The latter allow the possibility of modulating the quantum fluctuations of atomic displacements below the zero-point quantum noise level of coherent states. The expectation values and quantum fluctuations of both the atomic displacement and the lattice amplitude operators are calculated in these states---in some cases analytically. We also study the possibility of squeezing quantum noise in the atomic displacement using a polariton-based approach.

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X. Hu, Franco Nori. 1996-09-23. Quantum Phonon Optics: Coherent and Squeezed Atomic Displacements. https://doi.org/10.1103/physrevb.53.2419

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