Quantum trajectory simulation of controlled phase-flip gates using the vacuum Rabi splitting

Journal Article · Tue Nov 15 00:00:00 EST 2005 · Physical Review. A

DOI:https://doi.org/10.1103/PHYSREVA.72.0· OSTI ID:20786601

Goto, Hayato; Ichimura, Kouichi ^[1]

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1. Frontier Research Laboratory, Corporate Research and Development Center, Toshiba Corporation, Komukai, Toshiba-cho Saiwai-ku Kawasaki 212-8582 (Japan)

The atom-photon controlled phase-flip gates using vacuum Rabi splitting proposed by Duan and Kimble [Phys. Rev. Lett. 92, 127902 (2004)] are simulated by a quantum trajectory approach. Atomic nonradiative dephasing and intracavity loss due to absorption and scattering by cavity mirrors are taken into account in addition to atomic spontaneous emission. The gate fidelity calculated by the trajectory approach is compared with that obtained by a simple amplitude-damping model. The gate fidelity under the condition of no photon loss is also discussed.

• OSTI ID: 20786601
• Journal Information: Physical Review. A, Vol. 72, Issue 5; Other Information: DOI: 10.1103/PhysRevA.72.054301; (c) 2005 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
ABSORPTION
AMPLITUDES
ATOMS
COMPUTERIZED SIMULATION
DAMPING
EMISSION
GATING CIRCUITS
INFORMATION THEORY
MIRRORS
PHOTONS
QUANTUM MECHANICS
SCATTERING