Quantum gates based on electron spins of triple quantum dot

被引：3
|
作者：
Sasakura, H
Adachi, S
Muto, S
机构：
[1] Hokkaido Univ, Dept Appl Phys, Sapporo, Hokkaido 0608628, Japan
[2] CREST, Japan Sci & Technol Corp, Sapporo, Hokkaido 0608628, Japan
来源：
JAPANESE JOURNAL OF APPLIED PHYSICS PART 1-REGULAR PAPERS BRIEF COMMUNICATIONS & REVIEW PAPERS | 2003年 / 42卷 / 10期
关键词：
quantum dot; quantum computation; photon-assisted tunnelling;
D O I：
10.1143/JJAP.42.6308
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
Quantum computation using electron spins in three-coupled dots of different sizes is proposed. By using photon-assisted tunnelling, Coulomb blockade and spin rotation of electrons, logic gates are realized by static and rotational magnetic fields and resonant optical pulses. The two-bit CNOT is numerically demonstrated by the time evolution of the density matrix. In addition, the Hamiltonian is described using pseudo-spin representation and the phase change during the gate operation is discussed.
引用
收藏
页码：6308 / 6313
页数：6
相关论文
共 50 条
  • [41] Geometric single-qubit gates for an electron spin in a quantum dot
    Malinovsky, Vladimir S.
    Rudin, Sergey
    [J]. INTERNATIONAL JOURNAL OF QUANTUM CHEMISTRY, 2012, 112 (24) : 3744 - 3749
  • [42] Deterministic quantum logic gates and quantum cloning based on quantum dot-cavity coupled system
    Ji, Yan-Qiang
    Wen, Jing-Ji
    Wang, Yun-Long
    Zhu, Ai-Dong
    Wang, Hong-Fu
    Zhang, Shou
    Yeon, Kyu-Hwang
    [J]. OPTICS COMMUNICATIONS, 2013, 303 : 56 - 61
  • [43] Spin blockade of quantum cellular automata effects in a few electron triple quantum dot
    Gaudreau, L.
    Sachrajda, A. S.
    Studenikin, S. A.
    Zawadzki, P.
    Kam, A.
    [J]. PHYSICA E-LOW-DIMENSIONAL SYSTEMS & NANOSTRUCTURES, 2008, 40 (05): : 978 - 981
  • [44] Quantum logic gates based on coherent electron transport in quantum wires
    Bertoni, A
    Bordone, P
    Brunetti, R
    Jacoboni, C
    Reggiani, S
    [J]. PHYSICAL REVIEW LETTERS, 2000, 84 (25) : 5912 - 5915
  • [45] Design and Modelling of Silicon Quantum Dot Based Single Qubit Spin Quantum Gates
    Hilal A. Bhat
    Gul Faroz A. Malik
    Farooq A. Khanday
    [J]. International Journal of Theoretical Physics, 61
  • [46] Design and Modelling of Silicon Quantum Dot Based Single Qubit Spin Quantum Gates
    Bhat, Hilal A.
    Malik, Gul Faroz A.
    Khanday, Farooq A.
    [J]. INTERNATIONAL JOURNAL OF THEORETICAL PHYSICS, 2022, 61 (11)
  • [47] Electron transport through triple-quantum-dot systems
    Mourokh, L.
    Smirnov, A.
    Chudnovskiy, A.
    Pfannkuche, D.
    [J]. PHYSICS OF SEMICONDUCTORS, PTS A AND B, 2007, 893 : 799 - +
  • [48] Optimal control of universal quantum gates in a double quantum dot
    Castelano, Leonardo K.
    de Lima, Emanuel F.
    Madureira, Justino R.
    Degani, Marcos H.
    Maialle, Marcelo Z.
    [J]. PHYSICAL REVIEW B, 2018, 97 (23)
  • [49] Scheme for implementing nonlocal high-fidelity quantum controlled-not gates on quantum-dot-confined electron spins using optical microcavities and photonic hyperentanglement
    Han, Yu-Hong
    Cao, Cong
    Fan, Ling
    Zhang, Ru
    [J]. FRONTIERS IN PHYSICS, 2022, 10
  • [50] Bell-state preparation for electron spins in a semiconductor double quantum dot
    Roloff, Robert
    Poetz, Walter
    [J]. PHYSICAL REVIEW B, 2007, 76 (07)
12345