Double Feature: Distillation of Single Photons based on Cavity QED (M.Sc. Severin Daiss)

Distillation of Single Photons based on Cavity QED

  • Date: May 28, 2019
  • Time: 02:30 PM (Local Time Germany)
  • Speaker: M.Sc. Severin Daiss
  • Quantum Dynamics Division, MPQ
  • Location: Max Planck Institute of Quantum Optics
  • Room: Herbert Walther Lecture Hall
Custom-shaped single photons are an indispensable tool for many quantum communication applications. We distill them out of incoming optical pulses that are reflected from an atom-cavity system [1].

A suitable atomic measurement is used to herald the suppression of unwanted Fock components. Out of vacuum-dominated coherent pulses, we distill single photons with fidelity of 66%. Applying our protocol to state-of-the-art fiber cavities would allow to reach single-photon fidelities of up to 96%.

[1] S. Daiss, S. Welte, B. Hacker, L. Li, G. Rempe, PRL 122, 133603 (2019)



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