Photoluminiscence of a quantum dot hybridized with a continuum
arXiv:0908.4114 · doi:10.1103/PhysRevLett.103.156802
Abstract
We calculate the intensity of photon emission from a trion in a single quantum dot, as a function of energy and gate voltage, using the impurity Anderson model and variational wave functions. Assuming a flat density of conduction states and constant hybridization energy, the results agree with the main features observed in recent experiments: non-monotonic dependence of the energy on gate voltage, non-Lorentzian line shapes, and a line width that increases near the regions of instability of the single electron final state to occupations zero or two.
4 pages, 3 figures, Journal-ref added
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