| 实现量子SWAP门的腔QED方案 |
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| 引用本文： | 何娟,叶柳,倪致祥. 实现量子SWAP门的腔QED方案[J]. 量子电子学报, 2007, 24(5): 579-582 |
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| 作者姓名： | 何娟 叶柳 倪致祥 |
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| 作者单位： | 安徽大学物理与材料科学学院,安徽,合肥,230039;阜阳师范学院物理系,安徽,阜阳,236041;安徽大学物理与材料科学学院,安徽,合肥,230039;阜阳师范学院物理系,安徽,阜阳,236041 |
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| 基金项目： | 国家自然科学基金，The program of the education department of anhui province，Talent Foundation of Anhui University，the Youth Program of Fu Yang Normal College |
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| 摘 要： | 提出一个基于两个三能级原子和单膜腔场大失谐相互作用来实现两比特量子SWAP门的腔QED方案.在这个方案里,两个全同三能级原子同时与单膜真空腔场发生大失谐相互作用,并辅助了经典场对原子施行单比特操作.此外,在整个作用过程中,腔场态一直处于虚激发,原子和腔场之间没有信息交换,因此对腔的品质要求大大降低.在目前的腔QED技术条件下,该方案是可以实现的.
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| 关 键 词： | 量子信息 量子SWAP门 腔QED 大失谐 |
| 文章编号： | 1007-5461（2007）05-0579-04 |
| 修稿时间： | 2006-11-08 |
A scheme for realization of quantum SWAP gate in cavity QED |
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| HE Juan,YE Liu,NI Zhi-xiang. A scheme for realization of quantum SWAP gate in cavity QED[J]. Chinese Journal of Quantum Electronics, 2007, 24(5): 579-582 |
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| Authors: | HE Juan YE Liu NI Zhi-xiang |
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| Affiliation: | 1 School of Physics and Material Science, Anhui University, Hefei 230039, China; 2 Department of Physics, Fuyang Normal College, Fuyang 236041, China |
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| Abstract: | A scheme is proposed for the realization of quantum SWAP gate in cavity QED.We consider two three-level atoms simultaneously interact with single-mode cavity in the case of large detuning.Moreover,two classical fields are used to perform the rotations on atoms.The operation and implement course are simple and handy.In addition,during the whole course,the cavity is only virtually excited,thus the decoherence time is greatly prolonged and the demand on the quality factor of the cavity is greatly reduced.Within the present cavity QED techniques,the scheme is realizable. |
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| Keywords: | quantum information quantum SWAP gate cavity QED large detuning |
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