欢迎登录材料期刊网

材料期刊网

高级检索

运用熟知的级数截断方法,设计程序计算了线性Paul阱中两离子量子门系统Schr(o)dinger方程的精确解,分析了质心波函数几个较低能级的态,并作出对应的几率分布图;计算相对距离的方均差△r2>(h)/2,相对运动的动量方均差△p2<(h)/2,并满足量子力学的Heisenberg不确定度关系△r.△p>(h)/2,它满足压缩态的条件,即质心处于基态时,两离子相对位置的量子态是一个压缩态,并得到了两离子纠缠态的表达式.纠缠的存在对量子计算和量子信息有影响,量子测量的不确定度和纠缠是在实验中应加以考虑的问题.

参考文献

[1] Steane A.Quantum computing[J].Rep.Prog.Phys.,1998,61:117.
[2] DeVoe R G.Elliptical ion traps and trap arrays for quantum computation[J].Phys.Rev.A,1998,58:910.
[3] Cirac J I,Zoller P.Quantum computations with cold trapped ions[J].Phys.Rev.lett.,1995,74:4091.
[4] Cirac J F,Zoller J I.Quantum gates with "Hot " trapped ion poyatos[J].Phys.Rev.Lett..1998,81:1322.
[5] Monroe C,et al.Resolved-sideband Raman cooling of a bound atom to the 3D zero-point energy[J].Phys.Rev.Lett.,1995,75:4011.
[6] Monroe C,et al.Demonstration of a fundamental quantum logic gate[J].Phys.Rev.Left.,1995,75:4714.
[7] King B E,Wood C S,Myatt C J,et al.Cooling the collective motion of trapped ions to initialize a quantum regisster[J].Phys.Lett.,1995,81:1525.
[8] Devoe R G,et al.Order-chaos transition of two trapped Ions[J].Phys.Rev.Lett.,1988,61:255.
[9] Dicdrich F,Bergquist J C,et al.Laser cooling to the zero-point energy of motion[J].Phys.Rev.Lett.,62:403.
[10] Kielpinski D,et al.Sympathetic cooling of trapped ions for quantum logic[J].Phys.Rev.A,61:032310.
[11] Rohde H,et al.Sympathetic ground-state cooling and coherent manipulation with two-ion crystals[J].Journal of Optics B,2001,3:S34-S41.
[12] Cirac J I,et al.Laser cooling of trapped ions in a standing wave[J].Phys.Rev.A,1992,46:2668.
[13] Hai Wenhua,Feng Mang,et al.Energy eigenstates of a quantum gate system[J].International Journal of Theoretical Physics,2000,39(6).
[14] Hai W,et al.Stable orbits embedded in a chaotic attractor for a trapped ion interacting with a laser field[J].J.Phys.A,1998,31:2991.
[15] Hai W,et al.Energy gaps of a trapped ion interacting with a laser field[J].J.Phys.A,1999,32:8265.
[16] Kent A.Entangled mixed states and local purification[J].Phys.Rev.Left.,1998,81:2839.
[17] Zhou Xiaoqing,Yan Zhanxian,Dai Wei.Theoretical research into optical,thermal and magnetic properties of Ni(pz)4Cl2 complex[J].Chinese Journal of Quantum Electronics (量子电子学报),1997,14(3):272-277 (in Chinese).
[18] Zhou Xiaoqing,Yan Zhanxian,Jian Fasheng.Theoretical study on optical and magnetic properties of Ni(pz)4Br2 complex[J].Chinese Journal of Quantum Electronics (量子电子学报),1995,12(3):272-277 (in Chinese).
[19] Chen Tumiao,Nie Zongxiu.Characteristics of traped ion considering the double frequency of trap field in Paul trap[J].Chinese Journal of Quantum Electronics (量子电子学报),2003,20(1):51-54 (in Chinese).
[20] Su Xiaoqin,Guo Guangcan.Quantum communication and quantum computation[J].Chinese Journal of Quantum Electronics (量子电子学报),2004,21(6):706-718 (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:
  • 1
    0%
  • 2
    0%
  • 3
    0%
  • 4
    0%
  • 5
    0%