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腔耦合量子点系统的非常规几何量子计算

, PP. 431-436

Keywords: 几何量子计算,量子点,拉曼过程

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Abstract:

提出了在量子点与腔相互作用系统中,利用双拉曼过程来实现非常规几何量子逻辑门方案。在本方案中,所有的演化本身与腔场态无关,因而对热场是不敏感的。在总位相中既包含有几何位相,又包含有动力学位相,但它的确仅依赖于量子态演化的整体几何特征。通过调节耦合常数和失谐量来选择我们所要的量子控制门,在实际的操作中不需要考虑消除动力学相位问题因而易于操作,且避免因消除动力学相位引入的误差。

References

[1]  [J]. Phys. Rev. B, 2006, 73: 075312.?
[2]  Zhao N, Zhong L, Zhu J L, Sun C P, Spin entanglement induced by spin-orbit interactions in coupled quantum dots
[3]  [J]. Phys. Rev. B, 2006, 74: 075307.?
[4]  Emary C , Sham L J, Optically controlled logic gates for two spin qubits in vertically coupled quantum dots
[5]  [J]. Phys. Rev. B, 2007, 75: 125317.?
[6]  Boyle S J, Ramsay A J, Bello F, Liu H Y, Hopkinson M, Fox A M , Skolnick M S, Two-qubit conditional quantum-logic operation in a single self-assembled quantum dot
[7]  [J]. Phys. Rev. B, 2008, 78: 075301.?
[8]  Bertoni A, Bordone P, Brunetti R, Jacoboni C , Reggiani S, Quantum logic gates based on coherent electron transport in quantum wires
[9]  [J]. Phys. Rev. Lett., 1999, 84: 5912-5915.
[10]  
[11]  Zhu S L, Wang Z D. Unconventional Geometric Quantum Computation.
[12]  [J]. Phys. Rev. Lett, 2003, 91: 187902。?
[13]  Sorensen A S, Molmer K, Entangling atoms in bad cavities
[14]  [J]. Phys. Rev. A, 2002, 66: 022314.?
[15]  Sorensen A S, Molmer K, Entanglement and quantum computation with ions in thermal motion
[16]  [J]. Phys. Rev. A, 2000, 62: 022311.?
[17]  Feng X L, Wang Z, Wu C, Kwek L C , Lai C H, Oh C H, Scheme for unconventional geometric quantum computation in cavity QED
[18]  [J]. Phys. Rev. A, 2007, 75: 052312.
[19]  
[20]  Clark S G, Parkins A S, Entanglement and entropy engineering of atomic two-qubit states
[21]  [J]. Phys. Rev. Lett., 2003, 90: 047905.?
[22]  Leibfried D, DeMarco B, Meyer V, Lucas D, Barrett M, Britton J, Itano W M, Jelenkovic B, Langer C, Rosenband T,and Wineland D J, Nature , 422, 412, 2003。?
[23]  Wang Xand Zanardi P, Simulation of many-body interactions by conditional geometric phases
[24]  [J],Phys. Rev. A, 2002, 65: 032327.
[25]  
[26]  Zheng S B, Unconventional geometric quantum phase gates with a cavity QED system
[27]  [J], Phys. Rev. A, 2004,70: 052320。
[28]  
[29]  Chen C Y, Feng M, Zhang X L, and Gao K L, Strong-driving-assisted unconventional geometric logic gate in cavity QED
[30]  [J], Phys. Rev.A 2006, 73: 032344.
[31]  
[32]  Chen C Y, Zhang X L, Deng Z J, Gao K L, and Feng M, Influence from cavity decay on geometric quantum computation in the large-detuning cavity QED model
[33]  [J], Phys. Rev. A. 2006, 74, 032328.
[34]  
[35]  Lloyd S, Almost Any Quantum Logic Gate is Universal
[36]  [J],Phys. Rev. Lett.1995,75, 346 .?
[37]  Kuratsuji H, Geometric Canonical Phase Factors and Path Integrals.
[38]  [J] Phys. Rev. Lett. 1988, 61, 1687。
[39]  Hillery M and Zubairy M S, Path-integral approach to problems in quantum optics
[40]  [J], Phys. Rev. A ,1982,26: 451.?
[41]  Aharonov Y and Anandan J, Phase change during a cyclic quantum evolution
[42]  [J], Phys. Rev. Lett. 1987, 58: 1593.
[43]  
[44]  Taylor J M, Lukin M D, Cavity quantum electrodynamics with semiconductor double-dot molecules on a chip
[45]  [J].cond-mat/0605144.?
[46]  Majer J, Chow J M, Gambetta J M, Koch J, Johnson B R, Schreier J A, Frunzio L, Schuster D I, A. A. Houck, A. Wallraff, A. Blais, M. H. Devoret, S. M. Girvin, R. J. Schoelkopf, Coupling superconducting qubits via a cavity bus
[47]  [J]. Nature (London), 2007, 449: 443.
[48]  
[49]  Childress L, S?rensen A S, Lukin M D, Mesoscopic cavity quantum electrodynamics with quantum dots
[50]  [J]. Phys. Rev. A, 2004, 69: 042302.?
[51]  Brun T A, Wang H, Coupling nanocrystals to a high-Q silica microsphere: Entanglement in quantum dots via photon exchange
[52]  [J]. Phys. Rev. A, 2000, 61: 032307.?
[53]  Ryu H Y, Notomi M, Lee Y H, High-quality-factor and small-mode-volume hexapole modes in photonic-crystal-slab nanocavities
[54]  [J], Appl. Phys. Lett., 2003, 83: 4294.
[55]  Loss D , DiVincenzo D P, Quantum computation with quantum dots
[56]  [J]. Phys. Rev. A, 1998, 57: 120.?
[57]  Imamoglu A, Awschalom D D, Burkard G, DiVincenzo D P, Loss D, Sherwin M, Small A, Quantum information processing using quantum dot spins and cavity QED
[58]  [J]. Phys. Rev. Lett., 1999, 83: 4204.?
[59]  Leuenberger M N, Fault-tolerant quantum computing with coded spins using the conditional Faraday rotation in quantum dots

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