Toward Continuous-Wave Regime Teleportation for Light Matter Quantum Relay Stations

We report a teleportation experiment involving narrowband entangled photons at 1560 nm and qubit photons at 795 nm emulated by faint laser pulses. A nonlinear difference frequency generation stage converts the 795-nm photons to 1560 nm in order to enable interference with one photon out of the pairs...

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Bibliographic Details
Published in:IEEE journal of selected topics in quantum electronics 2015-05, Vol.21 (3), p.69-77
Main Authors: Kaiser, Florian, Issautier, Amandine, Ngah, Lutfi A., Aktas, Djeylan, Delord, Tom, Tanzilli, Sebastien
Format: Article
Language:English
Subjects:
Bandwidth
coherent quantum interface
Modulation
Noise
nonlinear optical processes
Nonlinear optics
Photonics
Physics
Quantum Physics
Quantum teleportation
Stimulated emission
Teleportation
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Summary:We report a teleportation experiment involving narrowband entangled photons at 1560 nm and qubit photons at 795 nm emulated by faint laser pulses. A nonlinear difference frequency generation stage converts the 795-nm photons to 1560 nm in order to enable interference with one photon out of the pairs, i.e., at the same wavelength. The spectral bandwidth of all involved photons is of about 25 MHz, which is close to the emission bandwidth of emissive quantum memory devices, notably those based on ensembles of cold atoms and rare earth ions. This opens the route toward the realization of hybrid quantum nodes, i.e., combining quantum memories and entanglement-based quantum relays exploiting either a synchronized (pulsed) or a asynchronous (continuous-wave) scenario.
ISSN:1077-260X
1558-4542
DOI:10.1109/JSTQE.2014.2381465