基于光腔中的势阱离子同时与外激光场和腔场发生相互作用的特性,我们提出了一种量子逻辑门的实现方案.在该方案中,量子逻辑门是以离子内态和腔态作为比特,而势阱离子的运动态作为辅助比特始终保持在基态.而且,没有采用Lanb-Dicke近似,因而更容易为实验所实现.
参考文献
| [1] | Shor P W. Algorthms for quantum computation: disscrete log and factoring [C] //Proc. of 35th Annual Symposium on Foundations of Computer Science, ed. S. Goldwasser. IEEE Computer Society 1994, 124. |
| [2] | Barenco A. et al. Elementary gates for quantum computation [J]. Phys. Rev. A, 1995, 52: 3457. |
| [3] | Mundt A B, Kreuter A, et al. Coupling a single atomic quantum bit to a high finesse optical cavity [J]. Phys.Rev. Lett., 2002, 89: 103001. |
| [4] | Gershenfeld N A, Chuang I L. Bulk spin-resonance quantum computation [J]. Science, 1997, 275: 350. |
| [5] | Loss D, Divincenzo D. Quantum computation with quantum dots [J]. Phys. Rev. A, 1998, 57: 120. |
| [6] | Turchette Q A, et al. Measurement of conditional phase shifts for quantum logic [J]. Phys. Rev. Lett., 1995, 75:4710. |
| [7] | Cirac J I, Zoller P. Quantum computations with cold trapped ions [J]. Phys. Rev. Lett., 1995, 74: 4091. |
| [8] | Pachos J, Walther H. Quantum computation with trapped ions in an optical cavity [J]. Phys. Rev. Lett., 2002,89: 187903. |
| [9] | Feng Mang, Wang Xiaoguang. Implementation of quantum gates and preparation of entangled states in cavity QED with cold trapped ions [OL]. quant-ph/0112031. |
| [10] | Shelly Sharma S, Vidiella-Barranco A. Fast quantum logic gates with trapped ions interacting with external laser and quantized cavity beyond the Lamb-Dicke regime [OL]. quant-ph/0210113. |
| [11] | Semiao F L, Vidiella-Barranco A, et al. A proposal of quantum logic gates using cold trapped ions in a cavity [J]. Phys. Lett. A, 2002, 299: 423. |
| [12] | You L, Yi X X, Su X H. Quantum logic between atoms inside a high-Q optical cavity [J]. Phys. Rev. A, 2003,67: 032308. |
| [13] | Jane E, Plenio M B, Jonathan D. Quantum-information processing in strongly detuned optical cavities [J]. Phys.Rev. A, 2002, 65: 050302. |
| [14] | Van Enk S J, Mckeever J. et al. Cooling of a single atom in a optical trap inside a resonator [J]. Phys. Rev. A,2001, 64: 013407. |
| [15] | Monroe C, Meekhof D M. A Schrodinger-cat' superposition state of an atom [J]. Science, 1996, 272, 1130. |
| [16] | Parkins S, Larsabal E. Preparation and light-mediated distribution of motional state entanglement [J]. Phys. Rev.A, 2000, 63, 012304. |
| [17] | Li J F, et al. Implementation of quantum logic gate using a two-level trapped ion in cavity QED [J]. Acta Sinca Quantum Optica (量子光学学报), 2003, 9(4): 162-167 (in Chinese). |
上一张
下一张
上一张
下一张
计量
- 下载量()
- 访问量()
文章评分
- 您的评分：
-
10%
-
20%
-
30%
-
40%
-
50%