UNIGE document Scientific Article
previous document  unige:36726  next document
add to browser collection

Long Distance Quantum Teleportation in a Quantum Relay Configuration

Published in Physical Review Letters. 2004, vol. 92, no. 4
Abstract A long distance quantum teleportation experiment with a fiber-delayed Bell state measurement (BSM) is reported. The source creating the qubits to be teleported and the source creating the necessary entangled state are connected to the beam splitter realizing the BSM by two 2 km long optical fibers. In addition, the teleported qubits are analyzed after 2.2 km of optical fiber, in another laboratory separated by 55 m. Time-bin qubits carried by photons at 1310 nm are teleported onto photons at 1550 nm. The fidelity is of 77%, above the maximal value obtainable without entanglement. This is the first realization of an elementary quantum relay over significant distances, which will allow an increase in the range of quantum communication and quantum key distribution.
Full text
(ISO format)
DE RIEDMATTEN, Hugues et al. Long Distance Quantum Teleportation in a Quantum Relay Configuration. In: Physical Review Letters, 2004, vol. 92, n° 4. https://archive-ouverte.unige.ch/unige:36726

214 hits



Deposited on : 2014-05-20

Export document
Format :
Citation style :