| Entanglement of Momentum for a Single Photon with a Single Atom |
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| 作者姓名： | 郭锐 郭弘 |
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| 作者单位： | Key Laboratory for Quantum Information and Measurements of Ministry of Education, School of Electronics Engineering ＆ Computer Science, Peking University, Beijing 100871, People＇s Republic of China |
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| 摘 要： | In this talk, the interaction of a single photon injected to a single atom is studied, for which initially the photon is uncorrelated with the atom. The spontaneous emitted photon will then evolve to be entangled with the atom on their continuous kinetic variables （momentum） in the process of resonant scattering. We find the relations between the entanglement and their physical control parameters （such as the linewidth of the injected photon wave packet, and that of the atomic wave packet, etc. ）, which indicates that high entanglement can be reached by broadening the scale of the atomic wave or squeezing the linewidth of the incident single-photon pulse.
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| 关 键 词： | 动量纠缠 单光子 单原子 谐振散射 |
Entanglement of Momentum for a Single Photon with a Single Atom |
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| GUO Rui , GUO Hong.Entanglement of Momentum for a Single Photon with a Single Atom[J].Acta Sinica Quantum Optica,2006,12(B08):30-30. |
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| Authors: | GUO Rui GUO Hong |
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| Abstract: | A scheme is proposed for generating entangled states of two cavity modes in a bimodal cavity via adiabatic passage. It is based on the resonant interaction of a ladder-type three-level atom with two cavity modes assisted by classical fields. We also show that multi-atom W states can be prepared by abiabatic evolution. |
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