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Spin Qubits Silicon Quantum Computing

Interference of Single Photons from Two Separate Semiconductor Quantum Dots

arXiv
Authors: Edward B. Flagg, Andreas Muller, Sergey V. Polyakov, Alex Ling, Alan Migdall, Glenn S. Solomon

Year

2010

Paper ID

9092

Status

Preprint

Abstract Read

~2 min

Abstract Words

83

Citations

N/A

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 18.1% 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.

Why This Paper Matters

  • This paper contributes to the Spin Qubits & Silicon Quantum Computing research area in the Quantum Articles archive.
  • It adds a 2010 reference point for readers tracking recent quantum research.
  • We demonstrate and characterize interference between discrete photons emitted by two separate semiconductor quantum dot states in different samples excited by a pulsed laser.

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References & Citation Signals

[1] DOI https://doi.org/arXiv:1004.0153 [2] arXiv https://arxiv.org/abs/1004.0153 [3] Publisher https://arxiv.org/abs/1004.0153

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