Sonoluminescence as quantum vacuum radiation

Details Sonoluminescence as quantum vacuum radiation Sonoluminescence as quantum vacuum radiation

1995-06-15

arxiv.org/abs/quant-ph/9506023v1

Phys.Rev.Lett.76:3842-3845,1996

Physics

Quantum Physics

Latex file, 4 pages

Scientific paper

10.1103/PhysRevLett.76.3842

Sonoluminescence is explained in terms of quantum radiation by moving interfaces between media of different polarizability. It can be considered as a dynamic Casimir effect, in the sense that it is a consequence of the imbalance of the zero-point fluctuations of the electromagnetic field during the non-inertial motion of a boundary. The transition amplitude from the vacuum into a two-photon state is calculated in a Hamiltonian formalism and turns out to be governed by the transition matrix-element of the radiation pressure. Expressions for the spectral density and the total radiated energy are given.

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