Quantum Phonon Optics: Coherent and Squeezed Atomic Displacements

Details Quantum Phonon Optics: Coherent and Squeezed Atomic Displacements Quantum Phonon Optics: Coherent and Squeezed Atomic Displacements

1996-09-23

arxiv.org/abs/cond-mat/9609223v1

Phys. Rev. B 53 (1996) 2419

Physics

Condensed Matter

6 pages, RevTeX

Scientific paper

10.1103/PhysRevB.53.2419

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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