| 纠缠薛定谔猫态的非局域性及其在热库中的演化 |
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| 引用本文： | 吴强,朱国骏,张永德,陈增兵. 纠缠薛定谔猫态的非局域性及其在热库中的演化[J]. 光学学报, 2002, 22(12): 409-1414 |
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| 作者姓名： | 吴强 朱国骏 张永德 陈增兵 |
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| 作者单位： | 中国科学技术大学天文与应用物理系,合肥,230026;中国科学技术大学近代物理系,合肥,230027 |
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| 基金项目： | 国家自然科学基金(19975043、10104014) |
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| 摘 要： | 利用Bell-CHSH(Clauser-Horne-Shimony-Holt）不等式研究了两种纠缠的光学薛定猫态的量子非定域性及其在真空热库中的演化。计算表明,最大纠缠的薛定谔猫态具有最大非定域性。在真空热库中随着时间的演化,两种纠缠态的量子非定域性逐渐减弱直至消失。
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| 关 键 词： | Bell不等式 量子非定域性 纠缠相干态 热库 |
| 收稿时间： | 2001-12-26 |
Nonlocality of Entangled Schrodinger-Cat States and Its Evolution in a Thermal Reservoir |
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| Wu Qiang Zhu Guqjun Zhang Yongde Chen Zengbing ). Nonlocality of Entangled Schrodinger-Cat States and Its Evolution in a Thermal Reservoir[J]. Acta Optica Sinica, 2002, 22(12): 409-1414 |
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| Authors: | Wu Qiang Zhu Guqjun Zhang Yongde Chen Zengbing ) |
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| Affiliation: | Wu Qiang Zhu Guqjun Zhang Yongde Chen Zengbing 1),Department of Astronomy and Applied Physics,University of Scienceand Technology of China,Hefei 230026 2),Department of Modern Physics,University of Science and Technology of China,Hefei 230027. |
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| Abstract: | The quantum nonlocality of two kinds of entangled optical Schrodinger-cat states and its evolution in a vacuum thermal revervoir are studied by using the Bell-CHSH (Clauser-Horne-Shimony-Holt) inequalities. The derived result shows that the maximally entangled Schrodinger-cat state has the maximal quantum nonlocality. Under the time evolution in a vacuum thermal reservoir, quantum nonlocality of the two kinds of entangled states decreases gradually and disappears finally. |
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| Keywords: | Bell' s inequalities quantum nonlocality entangled coherent states thermal reservoir |
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