Focusing Vacuum Fluctuations

Details Focusing Vacuum Fluctuations Focusing Vacuum Fluctuations

2000-03-28

arxiv.org/abs/quant-ph/0003129v2

Phys.Rev. A62 (2000) 062105

Physics

Quantum Physics

20 pages, 4 figures; typos corrected, two refs and some comments added

Scientific paper

10.1103/PhysRevA.62.062105

The focusing of the vacuum modes of a quantized field by a parabolic mirror is investigated. We use a geometric optics approximation to calculate the energy density and mean squared field averages for scalar and electromagnetic fields near the focus. We find that these quantities grow as an inverse power of the distance to the focus. There is an attractive Casimir-Polder force on an atom which will draw it into the focus. Some estimates of the magnitude of the effects of this focusing indicate that it may be observable.

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