Casimir interaction from magnetically coupled eddy currents
- We study the quantum and thermal fluctuations of eddy (Foucault) currents in thick metallic plates. A Casimir interaction between two plates arises from the coupling via quasistatic magnetic fields. As a function of distance, the relevant eddy current modes cross over from a quantum to a thermal regime. These modes alone reproduce previously discussed thermal anomalies of the electromagnetic Casimir interaction between good conductors. In particular, they provide a physical picture for the Casimir entropy whose nonzero value at zero temperature arises from a correlated, glassy state.
Author details: | Francesco Intravaia, Carsten HenkelORCiDGND |
---|---|
URL: | http://prl.aps.org/ |
DOI: | https://doi.org/10.1103/Physrevlett.103.130405 |
ISSN: | 0031-9007 |
Publication type: | Article |
Language: | English |
Year of first publication: | 2009 |
Publication year: | 2009 |
Release date: | 2017/03/25 |
Source: | Physical review letters. - ISSN 0031-9007. - 103 (2009), 13, Art. 130405 |
Organizational units: | Mathematisch-Naturwissenschaftliche Fakultät / Institut für Physik und Astronomie |
Peer review: | Referiert |