A Scheme for Atomic Entangled States and Quantum Gate Operations in Cavity QED |
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| Authors: | LI Peng-Bo GU Ying GONG Qi-Huang GUO Guang-Can |
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| Affiliation: | State Key Laboratory for Mesoscopic Physics, Department of Physics, Peking University, Beijing 100871Key Laboratory of Quantum Information, University of Science and Technology of China, Hefei 230026 |
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| Abstract: | We propose a scheme for controllably entangling the ground states of five-state W-type atoms confined in a cavity and realizing swap gate and phase gate operations. In this scheme the cavity is only virtually excited and the atomic excited states are almost not occupied, so the produced entangled states and quantum logic operations are very robust against the cavity decay and atomic spontaneous emission. |
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| Keywords: | 03 67 Mn 03 67 Lx 42 50 Pq |
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