Subvacuum effects of the quantum field on the dynamics of a test particle
arXiv:0809.4100 · doi:10.1016/j.aop.2011.11.011
Abstract
We study the effects of the electromagnetic subvacuum fluctuations on the dynamics of a nonrelativistic charged particle in a wavepacket. The influence from the quantum field is expected to give an additional effect to the velocity uncertainty of the particle. In the case of a static wavepacket, the observed velocity dispersion is smaller in the electromagnetic squeezed vacuum background than in the normal vacuum background. This leads to the subvacuum effect. The extent of reduction in velocity dispersion associated with this subvacuum effect is further studied by introducing a switching function. It is shown that the slow switching process may make this subvacuum effect insignificant. We also point out that when the center of the wavepacket undergoes non-inertial motion, reduction in the velocity dispersion becomes less effective with its evolution, no matter how we manipulate the nonstationary quantum noise via the choice of the squeeze parameters. The role of the underlying fluctuation-dissipation relation is discussed.
30 pages, 2 figures
References in corpus (6)
- Low-frequency vacuum squeezing via polarization self-rotation in Rb vapor
- Vacuum fluctuations and Brownian motion of a charged test particle near a reflecting boundary
- Influence on electron coherence from quantum electromagnetic fields in the presence of conducting plates
- Stochastic Lorentz forces on a point charge moving near the conducting plate
- Brownian motion of a charged particle in electromagnetic fluctuations at finite temperature
- Recoherence by Squeezed States in Electron Interferometry
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