Field quantization and vacuum effects in a chiral medium
2008 (English)In: Journal of the Optical Society of America. B, Optical physics, ISSN 0740-3224, Vol. 25, no 11, 1864-1872 p.Article in journal (Refereed) Published
A chiral medium can create an anisotropic electromagnetic environment, which leads to anisotropic quantum-vacuum fields (and observable quantum-vacuum effects). As the noncompensation effect of a pair of counterpropagating (and counterpolarized) vacuum modes will arise in the chiral medium, the physical effects resulting from the quantum-vacuum fluctuation of left- and right-handed polarized modes will no longer be exactly canceled. This may lead to an observable quantum vacuum contribution to the Berry phases of circularly polarized modes in a time-dependent quantum system (e.g., a coiled light propagating in a noncoplanarly curved fiber). A scheme to separate the quantum-vacuum Berry phase of one polarized mode from another by using a chiral-medium fiber is suggested, and the time evolution of the vacuum zero-point energy in a coiled fiber is considered.
Place, publisher, year, edition, pages
2008. Vol. 25, no 11, 1864-1872 p.
berry topological phase; spontaneous emission; geometric phase; optical-fiber; spin; photon
Electrical Engineering, Electronic Engineering, Information Engineering
IdentifiersURN: urn:nbn:se:kth:diva-10073DOI: 10.1364/JOSAB.25.001864ISI: 000261399800015ScopusID: 2-s2.0-59949102303OAI: oai:DiVA.org:kth-10073DiVA: diva2:207377
QC 201008102009-03-112009-03-112010-12-07Bibliographically approved