Resonant photon creation in a three dimensional oscillating cavity

Details Resonant photon creation in a three dimensional oscillating cavity Resonant photon creation in a three dimensional oscillating cavity

2000-12-08

arxiv.org/abs/quant-ph/0012040v2

Phys. Rev. A 64, 013808 (2001)

Physics

Quantum Physics

13 pages. New section on off-resonance motion is included. To appear in Physical Review A

Scientific paper

10.1103/PhysRevA.64.013808

We analyze the problem of photon creation inside a perfectly conducting, rectangular, three dimensional cavity with one oscillating wall. For some particular values of the frequency of the oscillations the system is resonant. We solve the field equation using multiple scale analysis and show that the total number of photons inside the cavity grows exponentially in time. This is also the case for slightly off-resonance situations. Although the spectrum of a cavity is in general non equidistant, we show that the modes of the electromagnetic field can be coupled, and that the rate of photon creation strongly depends on this coupling. We also analyze the thermal enhancement of the photon creation.

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