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

Yueh-Nan Chen; Der-San Chuu

doi:10.1016/j.physleta.2004.02.054

paper

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

arXiv:cond-mat/0301047 · doi:10.1016/j.physleta.2004.02.054

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 $\frac{λ}{d}$ , where $λ$ is the wavelength of the emitted photon and $d$ is the lattice spacing.

4 pages, 1 figure, to appear in Phys. Letts. A (2004)