Vibrating Cavities - A numerical approach

Details Vibrating Cavities - A numerical approach Vibrating Cavities - A numerical approach

2004-08-23

arxiv.org/abs/quant-ph/0408142v2

J. Opt. B: Quantum Semiclass. Opt. 7 (2005) S100

Physics

Quantum Physics

28 pages, 19 figures, accepted for publication in J. Opt. B: Quantum Semiclass. Opt

Scientific paper

10.1088/1464-4266/7/3/014

We present a general formalism allowing for efficient numerical calculation of the production of massless scalar particles from vacuum in a one-dimensional dynamical cavity, i.e. the dynamical Casimir effect. By introducing a particular parametrization for the time evolution of the field modes inside the cavity we derive a coupled system of first-order linear differential equations. The solutions to this system determine the number of created particles and can be found by means of numerical methods for arbitrary motions of the walls of the cavity. To demonstrate the method which accounts for the intermode coupling we investigate the creation of massless scalar particles in a one-dimensional vibrating cavity by means of three particular cavity motions. We compare the numerical results with analytical predictions as well as a different numerical approach.

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