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 November 21, 2024)
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Interference of Single Photons from Two Separate Semiconductor Quantum Dots
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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
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Journals
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Keywords
quantum dots, photon statistics, indistinguishability, interference
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Created April 1, 2010, Updated November 10, 2018