Squeezed Phonon States: Modulating Quantum Fluctuations of Atomic Displacements

Details Squeezed Phonon States: Modulating Quantum Fluctuations of Atomic Displacements Squeezed Phonon States: Modulating Quantum Fluctuations of Atomic Displacements

1996-09-19

arxiv.org/abs/cond-mat/9609188v2

Phys. Rev. Lett. 76 (1996) 2294-2297

Physics

Condensed Matter

4 pages, RevTeX. The previous entry had a wrong page number in the Journal-ref field

Scientific paper

10.1103/PhysRevLett.76.2294

We study squeezed quantum states of phonons, which allow the possibility of modulating the quantum fluctuations of atomic displacements below the zero-point quantum noise level of coherent phonon states. We calculate the corresponding expectation values and fluctuations of both the atomic displacement and the lattice amplitude operators, and also investigate the possibility of generating squeezed phonon states using a three-phonon parametric amplification process based on phonon-phonon interactions. Furthermore, we also propose a detection scheme based on reflectivity measurements.

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