Tunable phase gate for two atoms with an immunity to decoherence

Journal Article · Mon May 15 00:00:00 EDT 2006 · Physical Review. A

DOI:https://doi.org/10.1103/PHYSREVA.73.0· OSTI ID:20787245

Shibiao, Zheng ^[1]; Guangcan, Guo ^[2]

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1. Department of Electronic Science and Applied Physics, Fuzhou University, Fuzhou 350002 (China)
2. Laboratory of Quantum Communication and Quantum Computation, University of Science and Technology of China, Hefei 230026 (China)

A scheme is presented for realizing a tunable phase gate for two atoms. The scheme is based on atom-cavity interaction and linear optics elements. In comparison with previous schemes, the distinct advantage is that the fidelity of the gate is not affected by the atomic spontaneous emission, cavity decay, and imperfection of the photodetectors, which is important for implementing high-fidelity quantum gates under realistic conditions.

• OSTI ID: 20787245
• Journal Information: Physical Review. A, Vol. 73, Issue 5; Other Information: DOI: 10.1103/PhysRevA.73.052328; (c) 2006 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA); ISSN 1050-2947
• Country of Publication: United States
• Language: English

Related Subjects

74 ATOMIC AND MOLECULAR PHYSICS
ATOMS
COMPARATIVE EVALUATIONS
DECAY
GATING CIRCUITS
OPTICS
PHOTODETECTORS
QUANTUM DECOHERENCE