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Inhomogeneity-related cutoff dependence of the Casimir energy and stress
KTH, Skolan för elektro- och systemteknik (EES), Elektroteknisk teori och konstruktion. Zhejiang University, China; South China Normal University, China .
2016 (engelsk)Inngår i: Physical Review A. Atomic, Molecular, and Optical Physics, ISSN 1050-2947, E-ISSN 1094-1622, Vol. 93, nr 1, artikkel-id 013824Artikkel i tidsskrift (Fagfellevurdert) Published
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Abstract [en]

The Casimir stress and energy density are widely used to study the Casimir force, but they diverge in inhomogeneous systems, making the force seem to be infinite as well. Here we characterize the asymptotic behavior of the Casimir stress and energy density in inhomogeneous systems. We show an unambiguous map of all cutoff-dependent terms in the asymptotic expansion to the pressure and the surface tension through the insertion of multiple boundary layers. This result reveals an elegant subtraction to retrieve a finite stress that yields a cutoff-independent force.

sted, utgiver, år, opplag, sider
American Physical Society , 2016. Vol. 93, nr 1, artikkel-id 013824
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URN: urn:nbn:se:kth:diva-182855DOI: 10.1103/PhysRevA.93.013824ISI: 000368290900018Scopus ID: 2-s2.0-84955270495OAI: oai:DiVA.org:kth-182855DiVA, id: diva2:906541
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QC 20160224

Tilgjengelig fra: 2016-02-24 Laget: 2016-02-23 Sist oppdatert: 2017-11-30bibliografisk kontrollert

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