Electron spin decoherence in nuclear spin baths and dynamical decoupling

2011 ◽  
Author(s):  
N. Zhao ◽  
W. Yang ◽  
S. W. Ho ◽  
J. L. Hu ◽  
J. T. K. Wan ◽  
...  
Keyword(s):  
Electron Spin ◽  
Nuclear Spin ◽  
Dynamical Decoupling ◽  
Spin Decoherence

CONTROL OF ELECTRON SPIN DECOHERENCE IN MESOSCOPIC NUCLEAR SPIN BATHS

2008 ◽  
Vol 22 (01n02) ◽  
pp. 27-32
Author(s):  
REN-BAO LIU ◽  
WANG YAO ◽  
L. J. SHAM
Keyword(s):  
Electron Spin ◽  
Nuclear Spin ◽  
Spin Dynamics ◽  
Pair Correlation ◽  
Many Body ◽  
Nuclear Spins ◽  
Spin Decoherence ◽  
The Many ◽  
Mutually Independent ◽  
Correlation Approximation

The electron spin decoherence by nuclear spins in semiconductor quantum dots is caused by quantum entanglement between the electron and the nuclei. The many-body dynamics problem of the interacting nuclear spins can be solved with the pair-correlation approximation which treats the nuclear spin flip-flops as mutually independent. The nuclear spin dynamics can be controlled by simply flipping the electron spin so that the electron is disentangled from the nuclei and hence its lost coherence is restored.

Electron spin decoherence as a measure of nuclear spin bath frustration

2017 ◽  
Vol 471 ◽  
pp. 435-438 ◽  
Author(s):  
J. Jurec ◽  
B. Rakvin ◽  
M. Jokić ◽  
M. Kveder
Keyword(s):  
Electron Spin ◽  
Nuclear Spin ◽  
Spin Bath ◽  
Spin Decoherence

scholarly journals Electron spin decoherence in silicon carbide nuclear spin bath

2014 ◽  
Vol 90 (24) ◽  
Author(s):  
Li-Ping Yang ◽  
Christian Burk ◽  
Matthias Widmann ◽  
Sang-Yun Lee ◽  
Jörg Wrachtrup ◽  
...  
Keyword(s):  
Silicon Carbide ◽  
Electron Spin ◽  
Nuclear Spin ◽  
Spin Bath ◽  
Spin Decoherence

Electron Spin Decoherence by Nuclei

2018 ◽  
Author(s):  
M. M. Glazov
Keyword(s):  
Electron Spin ◽  
Spin Dynamics ◽  
Magnetic Moments ◽  
Host Lattice ◽  
Spin Model ◽  
Relaxation Processes ◽  
Nuclear Spins ◽  
Model Calculations ◽  
Spin Decoherence ◽  
Quantum Mechanical Approach

The discussion of the electron spin decoherence and relaxation phenomena via the hyperfine interaction with host lattice spins is presented here. The spin relaxation processes processes limit the conservation time of spin states as well as the response time of the spin system to external perturbations. The central spin model, where the spin of charge carrier interacts with the bath of nuclear spins, is formulated. We also present different methods to calculate the spin dynamics within this model. Simple but physically transparent semiclassical treatment where the nuclear spins are considered as largely static classical magnetic moments is followed by more advanced quantum mechanical approach where the feedback of electron spin dynamics on the nuclei is taken into account. The chapter concludes with an overview of experimental data and its comparison with model calculations.

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