Vacuum effects in a vibrating cavity: time refraction, dynamical Casimir effect, and effective Unruh acceleration
arXiv:0806.0742 · doi:10.1016/j.physleta.2008.06.084
Abstract
Two different quantum processes are considered in a perturbed vacuum cavity: time refraction and dynamical Casimir effect. They are shown to be physically equivalent, and are predicted to be unstable, leading to an exponential growth in the number of photons created in the cavity. The concept of an effective Unruh acceleration for these processes is also introduced, in order to make a comparison in terms of radiation efficiency, with the Unruh radiation associated with an accelerated frame in unbounded vacuum.
5 pages, version to appear in Physics Letters A
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- Fluctuations, dissipation and the dynamical Casimir effect
- Superluminal k-gap solitons in nonlinear photonic time-crystals
- Analogue Casimir Radiation using an Optical Para- metric Oscillator
- Frequency conversion cascade by crossing multiple space and time interfaces
- Dynamical Casimir effect for TE and TM modes in a resonant cavity bisected by a plasma sheet
- Towards particle creation in a microwave cylindrical cavity
- The influence of temporal coherence on the dynamical Casimir effect
- Radiation from accelerated impurities in Bose-Einstein condensate