OMQ Seminar: Spectrally-multiplexed entanglement swapping for generating a high number of Bell states

By Sofiane Merkouche, University of Oregon, Smith group

  • Event Type: Seminar
  • Date and Time: 04/04/2022 3:00 pm - 04/04/2022 4:00 pm
  • Location: Willamette 240D and Zoom

"Time and frequency (TF) encoding in quantum states of light is a promising paradigm for quantum information networks in the near future. This is largely due to the high information capacity provided by TF modes of light, and their compatibility with both fiber-based and free-space distribution. For this paradigm it is crucial to exploit TF entanglement both for quantum states of light and for quantum measurement. In this work we show one way of harnessing the high-dimensional nature of TF entanglement. We present a TF entanglement swapping experiment where frequency-resolved Bell-state measurements are used to herald a multitude of frequency-encoded Bell states using readily-available multimode parametric downconversion sources. We believe our methods will be valuable for quantum networks relying on TF-encoded quantum information distribution."