Generation of entangled states in cavity QED

Journal Article · Thu Sep 15 04:00:00 EDT 2005 · Physical Review. A

DOI:https://doi.org/10.1103/PhysRevA.72.034304· OSTI ID:20718642

Liu, Ye ^[1]; Longbao, Yu ^[2]; Guangcan, Guo ^[1]

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1. Laboratory of Quantum Information, University of Science and Technology of China, Hefei 230026 (China)
2. Anhui Key Laboratory of Information Material and Devices, School of Physics and Material Science, Anhui University, Hefei 230039 (China)

We propose a scheme to generate four Bell states and a four-atom entangled cluster state in a thermal cavity. The photon-number-dependent parts in the effective Hamiltonian are canceled with the assistance of a strong classical field. The cavity field is only virtually excited; no quantum information will be transferred from the atoms to the cavity and thus the scheme is insensitive to the cavity decay and the thermal field. The scheme can also be used to generate the cluster state for the trapped ions.

• OSTI ID: 20718642
• Journal Information: Physical Review. A, Journal Name: Physical Review. A Journal Issue: 3 Vol. 72; ISSN 1050-2947; ISSN PLRAAN
• Country of Publication: United States
• Language: English

Related Subjects

74 ATOMIC AND MOLECULAR PHYSICS
ATOMS
BELL THEOREM
DECAY
ENERGY LEVELS
HAMILTONIANS
IONS
OPTICS
PHOTONS
QUANTUM ELECTRODYNAMICS
QUANTUM ENTANGLEMENT
QUANTUM INFORMATION
QUANTUM MECHANICS
TRAPPING