Abstract
A scheme for the optimal Gaussian cloning of coherent light states at the interface between light and atoms is proposed. The distinct feature of this proposal is that the clones are stored in an atomic quantum memory, which is important for applications in quantum communication. The atomic quantum cloning machine requires only a single passage of the light pulse through the atomic ensembles followed by the measurement of a light quadrature and an appropriate feedback, which renders the protocol experimentally feasible. An alternative protocol, where one of the clones is carried by the outgoing light pulse, is discussed in connection with eavesdropping on quantum key distribution.
Fiurasek, Jaromir;
[1]
Department of Optics, Palacky University, 17. listopadu 50, 77200 Olomouc (Czech Republic)];
Cerf, Nicolas J;
[1]
Polzik, Eugene S
[2]
- QUIC, Ecole Polytechnique, CP 165, Universite Libre de Bruxelles, 1050 Brussels (Belgium)
- Niels Bohr Institute, Danish Quantum Optics Center-QUANTOP, Copenhagen University, Blegdamsvej 17, Copenhagen Oe (Denmark)
Citation Formats
Fiurasek, Jaromir, Department of Optics, Palacky University, 17. listopadu 50, 77200 Olomouc (Czech Republic)], Cerf, Nicolas J, and Polzik, Eugene S.
Quantum cloning of a coherent light state into an atomic quantum memory.
United States: N. p.,
2004.
Web.
doi:10.1103/PhysRevLett.93.180501.
Fiurasek, Jaromir, Department of Optics, Palacky University, 17. listopadu 50, 77200 Olomouc (Czech Republic)], Cerf, Nicolas J, & Polzik, Eugene S.
Quantum cloning of a coherent light state into an atomic quantum memory.
United States.
https://doi.org/10.1103/PhysRevLett.93.180501
Fiurasek, Jaromir, Department of Optics, Palacky University, 17. listopadu 50, 77200 Olomouc (Czech Republic)], Cerf, Nicolas J, and Polzik, Eugene S.
2004.
"Quantum cloning of a coherent light state into an atomic quantum memory."
United States.
https://doi.org/10.1103/PhysRevLett.93.180501.
@misc{etde_20619268,
title = {Quantum cloning of a coherent light state into an atomic quantum memory}
author = {Fiurasek, Jaromir, Department of Optics, Palacky University, 17. listopadu 50, 77200 Olomouc (Czech Republic)], Cerf, Nicolas J, and Polzik, Eugene S}
abstractNote = {A scheme for the optimal Gaussian cloning of coherent light states at the interface between light and atoms is proposed. The distinct feature of this proposal is that the clones are stored in an atomic quantum memory, which is important for applications in quantum communication. The atomic quantum cloning machine requires only a single passage of the light pulse through the atomic ensembles followed by the measurement of a light quadrature and an appropriate feedback, which renders the protocol experimentally feasible. An alternative protocol, where one of the clones is carried by the outgoing light pulse, is discussed in connection with eavesdropping on quantum key distribution.}
doi = {10.1103/PhysRevLett.93.180501}
journal = []
issue = {18}
volume = {93}
journal type = {AC}
place = {United States}
year = {2004}
month = {Oct}
}
title = {Quantum cloning of a coherent light state into an atomic quantum memory}
author = {Fiurasek, Jaromir, Department of Optics, Palacky University, 17. listopadu 50, 77200 Olomouc (Czech Republic)], Cerf, Nicolas J, and Polzik, Eugene S}
abstractNote = {A scheme for the optimal Gaussian cloning of coherent light states at the interface between light and atoms is proposed. The distinct feature of this proposal is that the clones are stored in an atomic quantum memory, which is important for applications in quantum communication. The atomic quantum cloning machine requires only a single passage of the light pulse through the atomic ensembles followed by the measurement of a light quadrature and an appropriate feedback, which renders the protocol experimentally feasible. An alternative protocol, where one of the clones is carried by the outgoing light pulse, is discussed in connection with eavesdropping on quantum key distribution.}
doi = {10.1103/PhysRevLett.93.180501}
journal = []
issue = {18}
volume = {93}
journal type = {AC}
place = {United States}
year = {2004}
month = {Oct}
}