|
| related topics |
| {force, casimir, field} |
| {temperature, thermal, energy} |
| {energy, state, states} |
| {cavity, atom, atoms} |
| {state, phys, rev} |
| {time, wave, function} |
|
Towards measuring variations of Casimir energy by a superconducting
cavity
Giuseppe Bimonte, Enrico Calloni, Giampiero Esposito, Leopoldo Milano, Luigi Rosa
abstract: We consider a Casimir cavity, one plate of which is a thin superconducting
film. We show that when the cavity is cooled below the critical temperature for
the onset of superconductivity, the sharp variation (in the far infrared) of
the reflection coefficient of the film engenders a variation in the value of
the Casimir energy. Even though the relative variation in the Casimir energy is
very small, its magnitude can be comparable to the condensation energy of the
superconducting film, and this gives rise to a number of testable effects,
including a significant increase in the value of the critical magnetic field,
required to destroy the superconductivity of the film. The theoretical ground
is therefore prepared for the first experiment ever aimed at measuring
variations of the Casimir energy itself.
- oai_identifier:
- oai:arXiv.org:quant-ph/0406188
- categories:
- quant-ph cond-mat.supr-con hep-th
- comments:
- 4 pages, 2 figures. Substantial improvement of presentation, choice
of a more convenient cavity geometry. Accepted for publication in Phys. Rev.
Lett
- doi:
- 10.1103/PhysRevLett.94.180402
- arxiv_id:
- quant-ph/0406188
- journal_ref:
- Phys.Rev.Lett. 94 (2005) 180402
- report_no:
- DSF-15/2004
- created:
- 2004-06-25
- updated:
- 2005-04-07
Full article ▸
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