Article ID Journal Published Year Pages File Type
1858907 Physics Letters A 2016 6 Pages PDF
Abstract

•Spectrum of excitons confined on the surface of a sphere has been evaluated.•Order parameters for different excitonic states show interesting features.•Energy eigenvalues and probability for different excitonic states are shown.

Excitonic transitions on the surface of a sphere have been studied in he presence of external static electric and laser fields. The spectrum and the various coupling matrix elements, 〈ψl,m|cosnϑ|ψl′,m′〉〈ψl,m|cosnϑ|ψl′,m′〉 (for n=1,2,3n=1,2,3), between few states of exciton have been evaluated in the absence and presence of excitonic Coulombic interaction with different values of dielectric constant. Variation of various physical quantities: energy eigenvalues, transition probability, orientational and alignment parameter, has been shown to have strong dependence on the laser field and static electric field.

Related Topics
Physical Sciences and Engineering Physics and Astronomy Physics and Astronomy (General)
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