0105118v1

related topics
{force, casimir, field}
{energy, gaussian, time}
{temperature, thermal, energy}
{cavity, atom, atoms}
{field, particle, equation}
{time, decoherence, evolution}
{state, states, coherent}
{operator, operators, space}
{time, wave, function}
{photon, photons, single}
{equation, function, exp}
{light, field, probe}
{measurement, state, measurements}
{cos, sin, state}

Quantum radiation at finite temperature

Ralf Schützhold, Günter Plunien, Gerhard Soff

abstract: We investigate the phenomenon of quantum radiation - i.e. the conversion of (virtual) quantum fluctuations into (real) particles induced by dynamical external conditions - for an initial thermal equilibrium state. For a resonantly vibrating cavity a rather strong enhancement of the number of generated particles (the dynamical Casimir effect) at finite temperatures is observed. Furthermore we derive the temperature corrections to the energy radiated by a single moving mirror and an oscillating bubble within a dielectric medium as well as the number of created particles within the Friedmann-Robertson-Walker universe. Possible implications and the relevance for experimental tests are addressed. PACS: 42.50.Lc, 03.70.+k, 11.10.Ef, 11.10.Wx.

oai_identifier:
oai:arXiv.org:quant-ph/0105118
categories:
quant-ph
comments:
16 pages RevTeX
arxiv_id:
quant-ph/0105118
created:
2001-05-23

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