研究了由约瑟夫森结耦合的两个超导电荷量子比特模型中的几何量子失协和稠密编码信道容量.讨论了初始平均光子数、相对相位和两电荷量子比特间振幅对几何量子失协和稠密编码信道容量的影响.结果表明,初始平均光子数、相对相位和两电荷量子比特间振幅在几何量子失协及稠密编码信道容量的动力学演化过程中扮演了一个非常重要的角色,特别有意义的是可以通过调控相对相位来提高稠密编码信道容量的值.
参考文献
| [1] | Sun Qian;He Juan;Ye Liu.Efficient scheme for realizing quantum dense coding with GHZ state in separated low-Q cavities[J].中国物理B（英文版）,2014(6):44-50. |
| [2] | Luo, S.;Fu, S..Evaluating the geometric measure of quantum discord[J].Theoretical and mathematical physics,20123(3):870-878. |
| [3] | 嵇英华;徐林.非马尔科夫环境下耦合超导量子比特纠缠态的纠缠消相干[J].量子电子学报,2011(1):58-64. |
| [4] | SONG Ke-Hui.Scheme for Generating Cluster States with Charge Qubits in a Cavity[J].中国物理快报（英文版）,2009(12):16-19. |
| [5] | LIAO Qing-Hong;FANG Guang-Yu;WANG Yue-Yuan;AHMAD Muhammad Ashfaq;LIU Shu-Tian.Linear Entropy and Entanglement in Two-Charge-Qubit Circuits[J].中国物理快报（英文版）,2010(7):16-19. |
| [6] | 张凤阳;石瑛;李崇;宋鹤山.Quantum Entanglement Creating and Evolving in Two Charge Qubits Coupling to a Nanomechanical Resonator System[J].理论物理通讯：英文版,2011(08):385-388. |
| [7] | 乔盼盼;艾合买提.阿不力孜;蔡江涛;路俊哲;麦麦提依明.吐孙;日比古.买买提明.利用热平衡态超导电荷量子比特实现量子隐形传态[J].物理学报,2012(24):30-36. |
| [8] | LIAO Qing-Hong;FANG Guang-Yu;WANG Ji-Cheng;AHMAD Muhammad Ashfaq;LIU Shu-Tian.Control of the Entanglement between Two Josephson Charge Qubits[J].中国物理快报（英文版）,2011(6):52-55. |
| [9] | He XL;Liu YX;You JQ;Nori F.Variable-frequency-controlled coupling in charge qubit circuits: Effects of microwave field on qubit-state readout[J].Physical Review, A,20072 Pt.a(2 Pt.a):022317-1-022317-6-0. |
| [10] | YAN Feng-Li;WANG Mei-Yu.A Scheme for Dense Coding in the Non-Symmetric Quantum Channel[J].中国物理快报（英文版）,2004(7):1195-1197. |
| [11] | FANG Xian-Mei;GAO Xiao-Bo;CAO Zhuo-Liang.Quantum Dense Coding Without Joint Measurement[J].理论物理通讯(英文版),2009(7):33-36. |
| [12] | Holevo A.S..The capacity of the quantum channel with general signal states[J].IEEE Transactions on Information Theory,19981(1):269-273. |
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%