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Continuous generation of quantum light from a single ground-state atom in an optical cavity

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 نشر من قبل Bo Wang
 تاريخ النشر 2019
  مجال البحث فيزياء
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We show an optical wave-mixing scheme that generates quantum light by means of a single three-level atom. The atom couples to an optical cavity and two laser fields that together drive a cycling current within the atom. Weak driving in combination with strong atom-cavity coupling induces transitions between the dark states of the system, accompanied by single-photon emission and suppression of atomic excitation by quantum interference. For strong driving, the system can generate coherent or Schrodinger cat-like fields with frequencies distinct from those of the applied lasers.

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