| Original Articles |
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Quantum State Engineering by Superpositions of Coherent States
along a Straight Line in Cavity Quantum Electrodynamics
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| ZHENG Shi-Biao |
| Department of Electronic Science and Applied Physics, Fuzhou
University, Fuzhou 350002 |
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| Cite this article: |
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ZHENG Shi-Biao 2001 Chin. Phys. Lett. 18 1072-1073 |
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Abstract A scheme is proposed for generating the superpositions of several coherent states in a cavity field with dispersive cavity quantum electrodynamics (QED). In the scheme, a sequence of atoms interact dispersively with the cavity field, connected with a microwave source, and is manipulated by classical fields, followed by state-selective measurements. In this way, the cavity field is collapsed onto a superposition of several coherent states along a straight line with controllable coefficients.This scheme provides the possibility for quantum state engineering via coherent-state superpositions in cavity QED for the first time.
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| Keywords:
42.50.Dv
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Published: 01 August 2001
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| PACS: |
42.50.Dv
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(Quantum state engineering and measurements)
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