Sonoluminescence as quantum vacuum radiation

Eberlein, Claudia (1996) Sonoluminescence as quantum vacuum radiation. Physical Review Letters, 76 (20). pp. 3842-3845. ISSN 0031-9007

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Sonoluminescence is explained in terms of quantum vacuum 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 noninertial 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.

Item Type: Article
Schools and Departments: Institute of Development Studies
Subjects: Q Science > QC Physics
Depositing User: Claudia Eberlein
Date Deposited: 06 Feb 2012 19:38
Last Modified: 10 Mar 2017 19:23

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