Temporally and spectrally multiplexed single photon source using quantum feedback control for scalable photonic quantum technologies: Paper

Mikkel Heuck*, Mihir Pant, Dirk R Englund

*Corresponding author for this work

Research output: Contribution to journalJournal articleResearchpeer-review

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Current proposals for scalable photonic quantum technologies require on-demand sources of indistinguishable single photons with very high efficiency. Even with recent progress in the field there is still a significant gap between the requirements and state of the art performance. Here, we propose an on-chip source of time-multiplexed, heralded photons. Using quantum feedback control on a photon storage cavity with an optimized driving protocol, we estimate an on-demand efficiency of 99% and unheralded loss of order 1%, assuming high efficiency detectors and intrinsic cavity quality factors of order 108. We further explain how temporal- and spectral-multiplexing can be used in parallel to significantly reduce device requirements if single photon frequency conversion is possible with efficiency in the same range of 99%.
Original languageEnglish
Article number063046
JournalNew Journal of Physics
Issue number6
Number of pages14
Publication statusPublished - 2018


  • Single photon source
  • Quantum feedback control
  • Quantum information technology

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