Quantum versus classical hyperfine-induced dynamics in a quantum dot

被引：32
|
作者：
Coish, W. A.
Loss, Daniel
Yuzbashyan, E. A.
Altshuler, B. L.
机构：
[1] Univ Basel, Dept Phys & Astron, CH-4056 Basel, Switzerland
[2] Rutgers State Univ, Ctr Mat Theory, Dept Phys & Astron, Piscataway, NJ 08854 USA
[3] Columbia Univ, Dept Phys, New York, NY 10027 USA
[4] NEC Labs Amer, Princeton, NJ 08540 USA
来源：
JOURNAL OF APPLIED PHYSICS | 2007年 / 101卷 / 08期
基金：
加拿大自然科学与工程研究理事会; 日本科学技术振兴机构;
关键词：
D O I：
10.1063/1.2722783
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
In this article we analyze spin dynamics for electrons confined to semiconductor quantum dots due to the contact hyperfine interaction. We compare mean-field (classical) evolution of an electron spin in the presence of a nuclear field with the exact quantum evolution for the special case of uniform hyperfine coupling constants. We find that (in this special case) the zero-magnetic-field dynamics due to the mean-field approximation and quantum evolution are similar. However, in a finite magnetic field, the quantum and classical solutions agree only up to a certain time scale t <tau(c), after which they differ markedly.
引用
收藏
页数：5
相关论文
共 50 条
  • [1] Hyperfine-induced decay in triple quantum dots
    Ladd, Thaddeus D.
    [J]. PHYSICAL REVIEW B, 2012, 86 (12):
  • [2] Strong hyperfine-induced modulation of an optically driven hole spin in an InAs quantum dot
    Carter, S. G.
    Economou, Sophia E.
    Greilich, A.
    Barnes, Edwin
    Sweeney, T.
    Bracker, A. S.
    Gammon, D.
    [J]. PHYSICAL REVIEW B, 2014, 89 (07)
  • [3] Phonon-assisted carrier tunneling with hyperfine-induced spin flip in coupled quantum dot systems
    Karwat, Pawel
    Gawarecki, Krzysztof
    Machnikowski, Pawel
    [J]. PHYSICAL REVIEW B, 2021, 104 (04)
  • [4] Long-time electron spin storage via dynamical suppression of hyperfine-induced decoherence in a quantum dot
    Zhang, Wenxian
    Konstantinidis, N. P.
    Dobrovitski, V. V.
    Harmon, B. N.
    Santos, Lea F.
    Viola, Lorenza
    [J]. PHYSICAL REVIEW B, 2008, 77 (12)
  • [5] Effect of strain on hyperfine-induced hole-spin decoherence in quantum dots
    Maier, Franziska
    Loss, Daniel
    [J]. PHYSICAL REVIEW B, 2012, 85 (19)
  • [6] Quantum versus classical decoherence dynamics
    Gong, JB
    Brumer, P
    [J]. JOURNAL OF MODERN OPTICS, 2003, 50 (15-17) : 2411 - 2422
  • [7] Hyperfine interactions and electron spin-dynamics in a quantum dot
    Khaetskii, A
    Loss, D
    Glazman, L
    [J]. JOURNAL OF SUPERCONDUCTIVITY, 2003, 16 (01): : 221 - 224
  • [8] Hyperfine Interactions and Electron Spin-Dynamics in a Quantum Dot
    A. Khaetskii
    D. Loss
    L. Glazman
    [J]. Journal of Superconductivity, 2003, 16 : 221 - 224
  • [9] Vortex Dynamics: Quantum Versus Classical Regimes
    Thompson, L.
    Stamp, P. C. E.
    [J]. JOURNAL OF LOW TEMPERATURE PHYSICS, 2013, 171 (5-6) : 526 - 538
  • [10] Vortex Dynamics: Quantum Versus Classical Regimes
    L. Thompson
    P. C. E. Stamp
    [J]. Journal of Low Temperature Physics, 2013, 171 : 526 - 538
12345