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Related Experiment Videos

Deterministic single photons via conditional quantum evolution.

D N Matsukevich1, T Chanelière, S D Jenkins

  • 1School of Physics, Georgia Institute of Technology, Atlanta, Georgia 30332-0430, USA.

Physical Review Letters
|August 16, 2006
PubMed
Summary
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Researchers developed a deterministic single-photon source using cold rubidium atoms and feedback control. This stationary source reliably emits single photons, confirmed by sub-Poissonian statistics in detection records.

Area of Science:

  • Quantum optics
  • Atomic physics

Background:

  • Deterministic single-photon sources are crucial for quantum information processing.
  • Existing sources often face challenges with reliability, stationarity, or photon statistics.

Purpose of the Study:

  • To propose and demonstrate a novel, deterministic single-photon source.
  • To achieve stationary operation and high-quality photon emission using cold atoms.

Main Methods:

  • Utilized a heralded single-photon source composed of cold rubidium atoms.
  • Implemented a measurement-based feedback protocol to control photon emission.
  • Analyzed photoelectric detection records for statistical properties.

Main Results:

  • Successfully demonstrated a deterministic source of single photons.

Related Experiment Videos

  • The source is stationary, simplifying experimental setups.
  • Photoelectric detection records exhibited sub-Poissonian statistics, indicating single-photon purity.

    • Conclusions:

    • The proposed measurement-based feedback method effectively creates a deterministic single-photon source.
    • This approach offers a promising pathway for developing robust quantum light sources.
    • The use of cold rubidium atoms provides a stable and controllable platform.