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Fluctuations of fluctuation-induced casimir-like forces.

Abstract:
The force experienced by objects embedded in a correlated medium undergoing thermal fluctuations-the so-called fluctuation-induced force-is actually itself a fluctuating quantity. Using a scalar field model, we compute the corresponding probability distribution and show that it is a Gaussian centered on the well-known Casimir force, with a nonuniversal standard deviation that can be typically as large as the mean force itself. The relevance of these results to the experimental measurement of fluctuation-induced forces in soft condensed matter is discussed, as well as the influence of the finite temporal resolution of the measuring apparatus.
Publication status:
Published

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Publisher copy:
10.1103/physrevlett.89.230601

Authors


More by this author
Institution:
University of Oxford
Division:
MPLS
Department:
Physics
Sub department:
Theoretical Physics
Role:
Author


Journal:
Physical Review Letters More from this journal
Volume:
89
Issue:
23
Pages:
230601
Publication date:
2002-12-01
DOI:
EISSN:
1079-7114
ISSN:
0031-9007


Language:
English
Keywords:
Pubs id:
pubs:154615
UUID:
uuid:3be7ce0b-84f1-474d-b842-d20de2dc3e94
Local pid:
pubs:154615
Source identifiers:
154615
Deposit date:
2012-12-19

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