Robust quantum gates on neutral atoms with cavity-assisted photon scattering

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

DOI:https://doi.org/10.1103/PhysRevA.72.032333· OSTI ID:20718519

Duan, L -M; Wang, B ^[1]; Kimble, H J ^[2]

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1. FOCUS Center and MCTP, Department of Physics, University of Michigan, Ann Arbor, Michigan 48109-1120 (United States)
2. Norman Bridge Laboratory of Physics 12-33, California Institute of Technology, Pasadena, California 91125 (United States)

We propose a scheme to achieve quantum computation with neutral atoms whose interactions are catalyzed by single photons. Conditional quantum gates, including an N-atom Toffoli gate and nonlocal gates on remote atoms, are obtained through cavity-assisted photon scattering in a manner that is robust to random variation in the atom-photon coupling rate and which does not require localization in the Lamb-Dicke regime. The dominant noise in our scheme is automatically detected for each gate operation, leading to signalled errors which do not preclude efficient quantum computation even if the error probability is close to the unity.

• OSTI ID: 20718519
• 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
COUPLING
ENERGY LEVELS
ERRORS
GATING CIRCUITS
INFORMATION THEORY
NOISE
OPERATION
OPTICS
PHOTON-ATOM COLLISIONS
PHOTONS
PROBABILITY
QUANTUM COMPUTERS
QUANTUM MECHANICS
RANDOMNESS
SCATTERING
STATISTICS