Current Detection of Superradiance and Induced Entanglement of Double Quantum Dot Excitons

Y. N. Chen, D. S. Chuu, T. Brandes

Research output: Contribution to journalArticlepeer-review

2 Citations (Scopus)

Abstract

We propose to measure the superradiance effect by observing the current through a semiconductor double-dot system. An electron and a hole are injected separately into one of the quantum dots to form an exciton and then recombine radiatively. We find that the stationary current shows oscillatory behavior as one varies the interdot distance. The amplitude of oscillation can be increased by incorporating the system into a microcavity. Furthermore, the current is suppressed if the dot distance is small compared to the wavelength of the emitted photon. This photon trapping phenomenon generates the entangled state and may be used to control the emission of single photons at predetermined times.

Original languageEnglish
Number of pages1
JournalPhysical review letters
Volume90
Issue number16
DOIs
Publication statusPublished - 2003 Jan 1

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy(all)

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