Implementing a conditional z gate by a combination of resonant interaction and quantum interference

Journal Article · Fri Sep 15 00:00:00 EDT 2006 · Physical Review. A

DOI:https://doi.org/10.1103/PHYSREVA.74.032325· OSTI ID:20857678

Xubo, Zou; Yuli, Dong; Guangcan, Guo ^[1]

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1. Key Laboratory of Quantum Information, University of Science and Technology of China, Chinese Academy of Sciences, Hefei, Anhui 230026 (China)

We first propose an experimental scheme to implement a two-qubit conditional z gate with atoms trapped in a high-Q optical cavity. The scheme is based on a combination of resonant interaction and quantum interference. Further, we show that the scheme can be directly generalized to implement an N-qubit conditional z gate, and the interaction time required to implement scheme does not change with increasing the number of qubits. This might lead to more efficient construction of quantum circuits and quantum algorithms.

• OSTI ID: 20857678
• Journal Information: Physical Review. A, Vol. 74, Issue 3; Other Information: DOI: 10.1103/PhysRevA.74.032325; (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
ALGORITHMS
ATOMS
GATING CIRCUITS
INTERFERENCE
OPTICS
QUANTUM MECHANICS
QUBITS
RADIATION PRESSURE
TRAPPING