Abstract

A pulsed source of energy-time entangled photon pairs pumped by a standard\nlaser diode is proposed and demonstrated. The basic states can be distinguished\nby their time of arrival. This greatly simplifies the realization of 2-photon\nquantum cryptography, Bell state analyzers, quantum teleportation, dense\ncoding, entanglement swapping, GHZ-states sources, etc. Moreover the\nentanglement is well protected during photon propagation in telecom optical\nfibers, opening the door to few-photon applications of quantum communication\nover long distances.\n

Keywords

PhysicsQuantum entanglementQuantum teleportationPhotonSpontaneous parametric down-conversionQuantum networkQuantum information sciencePhoton entanglementQuantum channelQuantum cryptographyQuantum mechanicsQuantumQuantum information

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Publication Info

Year
1999
Type
article
Volume
82
Issue
12
Pages
2594-2597
Citations
644
Access
Closed

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Cite This

J. Brendel, Nicolas Gisin, Wolfgang Tittel et al. (1999). Pulsed Energy-Time Entangled Twin-Photon Source for Quantum Communication. Physical Review Letters , 82 (12) , 2594-2597. https://doi.org/10.1103/physrevlett.82.2594

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DOI
10.1103/physrevlett.82.2594