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Renormalized frequency shift of a Wannier exciton in a one-dimensional system

Yueh-Nan Chen, Der-San Chuu

cond-mat.mes-hallarXiv:cond-mat/0301047

Abstract

The radiative frequency shift of superradiant exciton in a one-dimensional system is calculated. It is shown that a finite frequency shift can be obtained after proper renormalization. The value of the shift is inversely proportional to the factor λd, where λ is the wavelength of the emitted photon and d is the lattice spacing.

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