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Interference of Single Photons from Two Separate Semiconductor Quantum Dots

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 نشر من قبل Edward Flagg
 تاريخ النشر 2010
  مجال البحث فيزياء
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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 18.1% and the coincidence rate is below the classical limit. Post-selection of coincidences within a narrow time window increases the coalescence probability to 47%. The probabilities are reduced from unity because of dephasing and the postselection value is also reduced by the detector time response.



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