Abstract
We demonstrate a passive scheme for deterministic interactions between a single photon and a single atom. Relying on single-photon Raman interaction (SPRINT), this control-fields free scheme swaps a flying qubit, encoded in the two possible input modes of a photon, with a stationary qubit, encoded in the two ground states of the atom, and can be also harnessed to perform universal quantum gates. Using SPRINT we experimentally demonstrated all-optical switching of single photons by single photons, and deterministic extraction of a single photon from an optical pulse. Applicable to any atom-like Lambda system, SPRINT provides a versatile building block for scalable quantum networks based on completely passive nodes interconnected and activated solely by single photons.
Original language | English |
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Article number | 972706 |
Number of pages | 7 |
Journal | Proceedings of SPIE - The International Society for Optical Engineering |
Volume | 9727 |
DOIs | |
Publication status | Published - 2016 |
Event | SPIE LASE: Laser Resonators, Microresonators, and Beam Control XVIII - San Francisco, California, United States, San Francisco, United States Duration: 15 Feb 2016 → 18 Feb 2016 |