Cavity-QED effects on entangled photon generation from a quantum dot

✍ Scribed by Hiroshi Ajiki; Hajime Ishihara

• Publisher: Elsevier Science
• Year: 2007
• Tongue: English
• Weight: 243 KB
• Volume: 40
• Category: Article
• ISSN: 1386-9477
• DOI: 10.1016/j.physe.2007.06.023

✦ Synopsis

We theoretically study polarization-entangled photon generation due to the resonant hyper-parametric scattering in a single quantum dot embedded in a microcavity. In contrast to the entangled photon generation from semiconductor until now, a biexciton does not play an important role because of the characteristic excitation states in the cavity QED. Although co-polarized non-entangled photon pairs are also emitted, the rate of entangled photon pairs becomes high in the strong-coupling limit due to the photon blockade effect.