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Interference of temporally distinguishable photons using frequency-resolved detection

Research output: Contribution to journal › Article

  • Venkata Vikram Orre
  • Elizabeth A. Goldschmidt
  • Abhinav Deshpande
  • Alexey V. Gorshkov
  • Dr Vincenzo Tamma
  • Mohammad Hafezi
  • Sunil Mittal
We demonstrate quantum interference of three photons that are distinguishable in time, by resolving them in the conjugate parameter, frequency. We show that the multi-photon interference pattern in our setup can be manipulated by tuning the relative delays between the photons, without the need for reconfiguring the optical network. Furthermore, we observe that the symmetries of our optical network and the spectral amplitude of the input photons are manifested in the interference pattern. We also demonstrate time-reversed Hong-Ou-Mandel like interference in the spectral correlations using time-bin entangled photon pairs. By adding a time-varying dispersion using a phase modulator, our setup can be used to realize dynamically reconfigurable and scalable boson sampling in the time-domain as well as frequency-resolved multi-boson correlation sampling.
Original languageEnglish
JournalPhysical Review Letters
Publication statusAccepted for publication - 22 Aug 2019

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