Quantum Telecommunication Based on Atomic Cascade Transitions
Open Access
- 10 March 2006
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review Letters
- Vol. 96 (9), 093604
- https://doi.org/10.1103/physrevlett.96.093604
Abstract
A quantum repeater at telecommunications wavelengths with long-lived atomic memory is proposed, and its critical elements are experimentally demonstrated using a cold atomic ensemble. Via atomic cascade emission, an entangled pair of and 780 nm photons is generated. The former is ideal for long-distance quantum communication, and the latter is naturally suited for mapping to a long-lived atomic memory. Together with our previous demonstration of photonic-to-atomic qubit conversion, both of the essential elements for the proposed telecommunications quantum repeater have now been realized.
Keywords
This publication has 29 references indexed in Scilit:
- Observation of Entanglement of a Single Photon with a Trapped AtomPhysical Review Letters, 2006
- Entanglement of Remote Atomic QubitsPhysical Review Letters, 2006
- Measurement-induced entanglement for excitation stored in remote atomic ensemblesNature, 2005
- Entanglement of a Photon and a Collective Atomic ExcitationPhysical Review Letters, 2005
- Quantum State Transfer Between Matter and LightScience, 2004
- Experimental Bell Inequality Violation with an Atom and a PhotonPhysical Review Letters, 2004
- Observation of entanglement between a single trapped atom and a single photonNature, 2004
- Long-distance quantum communication with atomic ensembles and linear opticsNature, 2001
- Quantum repeaters based on entanglement purificationPhysical Review A, 1999
- Quantum Repeaters: The Role of Imperfect Local Operations in Quantum CommunicationPhysical Review Letters, 1998