| Preparation of Highly Squeezed States and Multi—component Entangled Coherent States via the Raman Interaction |
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| 引用本文： | ZHENGShi－Biao. Preparation of Highly Squeezed States and Multi—component Entangled Coherent States via the Raman Interaction[J]. 理论物理通讯, 2002, 37(1): 87-90 |
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| 作者姓名： | ZHENGShi－Biao |
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| 作者单位： | DepartmentofElectronicScienceandAppliedPhysics,FuzhouUniversity,Fuzhou350002,China |
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| 基金项目： | 国家自然科学基金,福建省教育厅科研项目,福州大学校科研和教改项目 |
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| 摘 要： | A method is presented for generating highly squeezed states of a cavity field via the atom-cavity field interaction of the Raman type.In the scheme a sequence of three-level Λ-type atoms interacts with a cavity field,displaced by a classical source,in a Raman manner.Then the atomic states are measured.By this way the cavity field may collapse onto a superposition of several coherent states,which exhibits strong squeezing.The scheme can also be used to prepare superpositions of many two-mode coherent states for two cavity fields.The coherent states in each mode are on a straight line.This is the first way for preparing multi-component entangled coherent states of this type in cavity QED.
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| 关 键 词： | 量子光学 压缩态制备 多分量交缠相干态 |
Preparation of Highly Squeezed States and Multi-component Entangled Coherent States via the Raman Interaction |
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| ZHENG Sbi-Biao. Preparation of Highly Squeezed States and Multi-component Entangled Coherent States via the Raman Interaction[J]. Communications in Theoretical Physics, 2002, 37(1): 87-90 |
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| Authors: | ZHENG Sbi-Biao |
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| Abstract: | A method is presented for generating highly squeezed states of a cavity field via the atom-cavity field interaction of the Raman type. In the scheme a sequence of three-level A-type atoms interacts with a cavity field, displaced by a classical source, in a Rarman manner. Then the atomic states are measured. By this way the cavity field may collapse onto a superposition of several coherent states, which exhibits strong squeezing. The scheme can also be used to prepare superpositions of many two-mode coherent states for two cavity fields. The coherent states in each mode are on a straight line. This is the first way for preparing multi-component entangled coherent states of this type in cavity QED. |
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| Keywords: | squeezed state Raman interaction entangled coherent state |
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