Phonon Squeezed States Generated by Second Order Raman Scattering

Details Phonon Squeezed States Generated by Second Order Raman Scattering Phonon Squeezed States Generated by Second Order Raman Scattering

1997-12-05

arxiv.org/abs/cond-mat/9712078v1

Phys. Rev. Lett. 79, 4605 (1997)

Physics

Condensed Matter

4 pages, REVTEX

Scientific paper

10.1103/PhysRevLett.79.4605

We study squeezed states of phonons, which allow a reduction in the quantum fluctuations of the atomic displacements to below the zero-point quantum noise level of coherent phonon states. We investigate the generation of squeezed phonon states using a second order Raman scattering process. We calculate the expectation values and fluctuations of both the atomic displacement and the lattice amplitude operators, as well as the effects of the phonon squeezed states on macroscopically measurable quantities, such as changes in the dielectric constant. These results are compared with recent experiments.

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