Asia Pacific Physics Conference (APPC)
Analysis of a Single-Photon Generator Implemented by a Microtoroidal Cavity QED System
Kazuki Koshino, Takao Aoki
Abstract
We theoretically investigated single-photon generation by using a cavity QED system composed of a quantum dot, a toroidal cavity and a tapered fiber. Assuming that the excitation pulse has an exponential temporal profile, we derived formulas to calculate the photon statistics of the emitted pulse in the fiber. It is shown that the present system functions as an ideal single-photon source under practical parameters of toroidal cavity QED, by applying to the dot a π-pulse whose length is less than the radiative lifetime of the dot.