Published July 2006
| Version v1
Journal article
Faithful state transfer through a quantum channel
- 1. Dipartimento di Fisica, Universita di Bologna, Via Irnerio 46, I-40126, Bologna (Italy)
- 2. Dipartimento di Fisica, Universita di Roma La Sapienza, Piazzale A. Moro 2, 00185 Rome (Italy)
- 3. INFM Center for Statistical Mechanics and Complexity, Piazzale A. Moro 2, 00185 Rome (Italy)
Description
We study the possibility of realizing perfect quantum state transfer in mesoscopic devices. We discuss the case of the Fano-Anderson model extended to two impurities. For a channel with an infinite number of degrees of freedom, we obtain coherent behavior in the case of strong coupling or in weak coupling off resonance. For a finite number of degrees of freedom, coherent behavior is associated with weak coupling and resonance conditions. Finite-temperature and disorder effects are discussed
Additional details
Identifiers
- DOI
- 10.1103/PhysRevA.74.012316;
- arXiv
- arXiv:quant-ph/0505205v2;
Publishing Information
- Journal Title
- Physical Review. A
- Journal Volume
- 74
- Journal Issue
- 1
- Journal Page Range
- p. 012316-012316.9
- ISSN
- 1050-2947
- CODEN
- PLRAAN
INIS
- Country of Publication
- United States
- Country of Input or Organization
- International Atomic Energy Agency (IAEA)
- INIS RN
- 38025876
- Subject category
- S74: ATOMIC AND MOLECULAR PHYSICS; S71: CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; S75: CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY;
- Descriptors DEI
- COUPLING; DATA TRANSMISSION; DEGREES OF FREEDOM; ENERGY LEVELS; QUANTUM MECHANICS; RESONANCE
- Descriptors DEC
- COMMUNICATIONS; MECHANICS
Optional Information
- Notes
- (c) 2006 The American Physical Society