Implementation of three-qubit Grover search in cavity quantum electrodynamics

Journal Article · Thu Nov 15 00:00:00 EST 2007 · Physical Review. A

DOI:https://doi.org/10.1103/PHYSREVA.76.054301· OSTI ID:21028103

Yang, W L ^[1]; Chen, C Y ^[2]; Feng, M ^[1]

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1. State Key Laboratory of Magnetic Resonance and Atomic and Molecular Physics, Wuhan Institute of Physics and Mathematics, Chinese Academy of Sciences, Wuhan 430071 (China)
2. Department of Physics and Information Engineering, Hunan Institute of Humanities, Science and Technology, Loudi 417000 (China)

Using resonant interaction of three Rydberg atoms with a single-mode microwave cavity, we consider a realization of the three-qubit Grover search algorithm in the presence of weak cavity decay, based on a previous idea for a three-qubit quantum gate [Chen et al., Phys. Rev. A 73, 064304 (2006)]. We simulate the searching process under the influence of the cavity decay and show that our scheme could be achieved efficiently to find a marked state with high fidelity. The required operations are very close to the capabilities of current cavity QED techniques.

• OSTI ID: 21028103
• Journal Information: Physical Review. A, Vol. 76, Issue 5; Other Information: DOI: 10.1103/PhysRevA.76.054301; (c) 2007 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA); ISSN 1050-2947
• Country of Publication: United States
• Language: English

Related Subjects

71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
ALGORITHMS
MICROWAVE RADIATION
PHOTON-ATOM COLLISIONS
QUANTUM ELECTRODYNAMICS
QUANTUM MECHANICS
QUBITS
RYDBERG STATES