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Interference of Single Photons from Two Separate Semiconductor Quantum Dots

Published

Author(s)

Edward B. Flagg, Andreas Muller, Sergey V. Polyakov, Alexander E. Ling, Glenn S. Solomon

Abstract

We demonstrate and characterize interference between discrete photons emitted by two separate semiconductor quantum dot states in different samples excited by a pulsed laser. Their energies are tuned into resonance using strain. The photons have a total coalescence probability of 18 \% and post-selection of coincidences within a narrow time window increases the probability to 47 \%. These probabilities are reduced from unity because the coherence times are not lifetime-limited due to the presence of dephasing; the post-selection value is also reduced by the detector time-response.
Citation
Physical Review Letters

Keywords

quantum dots, photon statistics, indistinguishability, interference

Citation

Flagg, E. , Muller, A. , Polyakov, S. , Ling, A. and Solomon, G. (2010), Interference of Single Photons from Two Separate Semiconductor Quantum Dots, Physical Review Letters, [online], https://doi.org/10.1103/PhysRevLett.104.137401 (Accessed June 13, 2024)

Issues

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Created April 1, 2010, Updated November 10, 2018