Name
Abstract | ||
|---|---|---|
Optical implementations of quantum communication protocols typically involve laser fields. However, the standard description of the quantum state of a laser field is surprisingly insufficient to understand the quantum nature of such implementations. In this paper, we give a quantum information-theoretic description of a propagating continuous-wave laser field and reinterpret various quantum-optical experiments in light of this. A timely example is found in a recent controversy about the quantum teleportation of continuous variables. We show that contrary to the claims of T. Rudolph and B. C. Sanders [Phys. Rev. Lett. 87, 077903 (2001)], a conventional laser can be used for quantum teleportation with continuous variables and for generating continuous-variable quantum entanglement. Furthermore, we show that optical coherent states do play a privileged role in the description of propagating laser fields even though they cannot be ascribed such a role for the intracavity field. |
Year | Venue | Keywords |
|---|---|---|
2002 | Quantum Information & Computation | quantum teleportation,laser field,continuous variable,continuous-variable quantum entanglement,quantum communication protocol,quantum information-theoretic description,quantum nature,quantum state,conventional laser,propagating continuous-wave laser field,propagating laser field |
Field | DocType | Volume |
Quantum technology,Open quantum system,Quantum energy teleportation,Quantum electrodynamics,Quantum sensor,Quantum mechanics,Quantum imaging,Quantum channel,Quantum optics,Physics,Quantum network | Journal | 2 |
Issue | ISSN | Citations |
2 | QIC 2, 151 (2002) | 0 |
PageRank | References | Authors |
0.34 | 0 | 2 |
Name | Order | Citations | PageRank |
|---|---|---|---|
| S. J. van Enk | 1 | 11 | 4.68 |
| Christopher A. Fuchs | 2 | 38 | 6.36 |