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Retardation turns t...
Retardation turns the van der Waals attraction into a Casimir repulsion as close as 3 nm
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- Boström, Mathias (author)
- Linköpings universitet,Teoretisk Fysik,Tekniska högskolan
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- Sernelius, Bo (author)
- Linköpings universitet,Teoretisk Fysik,Tekniska högskolan
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- Brevik, Iver (author)
- Norwegian University of Science and Technology
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- Ninham, Barry W (author)
- Australian National University
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(creator_code:org_t)
- American Physical Society, 2012
- 2012
- English.
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In: Physical Review A. Atomic, Molecular, and Optical Physics. - : American Physical Society. - 1050-2947 .- 1094-1622. ; 85:1, s. 010701-
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Abstract
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- Casimir forces between surfaces immersed in bromobenzene have recently been measured by Munday et al. [Nature (London) 454, 07610 (2009)]. Attractive Casimir forces were found between gold surfaces. The forces were repulsive between gold and silica surfaces. We show the repulsion is due to retardation effects. The van der Waals interaction is attractive at all separations. The retardation-driven repulsion sets in at around 3 nm. To our knowledge, retardation effects have never been found at such a small distance before. Retardation effects are usually associated with large distances.
Keyword
- TECHNOLOGY
- TEKNIKVETENSKAP
Publication and Content Type
- ref (subject category)
- art (subject category)
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