Abstract We propose a scheme to implement the Deutsch--Jozsa algorithm by using Schr?dinger cat states in cavity quantum electron-dynamics (QED). The scheme is based on the Raman interaction of a degenerate three-level $\Lambda$ -type atom with a coherent state in a cavity. By using Schr?dinger cat states, the atomic spontaneous emission can be minimized and the Hadamard transformation in our scheme is not needed.
Received: 28 December 2005
Revised: 15 April 2006
Accepted manuscript online:
(Effects of atomic coherence on propagation, absorption, and Amplification of light; electromagnetically induced transparency and Absorption)
Fund: Project supported by the
National Natural Science Foundation (Grant No 10574022), and the Funds
of the Natural Science
of Fujian Province, China (Grant No Z0512006).
Cite this article:
Yang Rong-Can(杨榕灿), Li Hong-Cai(李洪才), Lin Xiu(林秀), and Chen Mei-Xiang(陈美香) Implementing the Deutsch--Jozsa algorithm by using Schrödinger cat states in cavity QED 2006 Chinese Physics 15 2320
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