Scheme for unconventional geometric quantum computation in cavity QED
文献类型：期刊论文
| 作者 | Feng XL(冯勋立) ; Wang Zisheng ; Wu Chunfeng ; Kwek L. C. ; Lai C. H. ; Oh C. H. |
| 刊名 | phys. rev. a
 |
| 出版日期 | 2007 |
| 卷号 | 75期号:5页码:52312 |
| 关键词 | PHASE-FACTORS STATES UNIVERSAL GATE |
| ISSN号 | 1050-2947 |
| 中文摘要 | in this paper, we present a scheme for implementing the unconventional geometric two-qubit phase gate with nonzero dynamical phase based on two-channel raman interaction of two atoms in a cavity. we show that the dynamical phase and the total phase for a cyclic evolution are proportional to the geometric phase in the same cyclic evolution; hence they possess the same geometric features as does the geometric phase. in our scheme, the atomic excited state is adiabatically eliminated, and the operation of the proposed logic gate involves only the metastable states of the atoms; thus the effect of the atomic spontaneous emission can be neglected. the influence of the cavity decay on our scheme is examined. it is found that the relations regarding the dynamical phase, the total phase, and the geometric phase in the ideal situation are still valid in the case of weak cavity decay. feasibility and the effect of the phase fluctuations of the driving laser fields are also discussed. |
| 收录类别 | EI |
| 语种 | 英语 |
| WOS记录号 | WOS:000246890400050 |
| 公开日期 | 2009-09-18 |
| 源URL | [http://ir.siom.ac.cn/handle/181231/1024]  |
| 专题 | 上海光学精密机械研究所_强场激光物理国家重点实验室 |
| 推荐引用方式 GB/T 7714 | Feng XL,Wang Zisheng,Wu Chunfeng,et al. Scheme for unconventional geometric quantum computation in cavity QED[J]. phys. rev. a,2007,75(5):52312. |
| APA | 冯勋立,Wang Zisheng,Wu Chunfeng,Kwek L. C.,Lai C. H.,&Oh C. H..(2007).Scheme for unconventional geometric quantum computation in cavity QED.phys. rev. a,75(5),52312. |
| MLA | 冯勋立,et al."Scheme for unconventional geometric quantum computation in cavity QED".phys. rev. a 75.5(2007):52312. |
入库方式： OAI收割
来源：上海光学精密机械研究所
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