scholarly journals Ultralong spin decoherence times in graphene quantum dots with a small number of nuclear spins

2013 ◽  
Vol 88 (24) ◽  
Author(s):  
Moritz Fuchs ◽  
John Schliemann ◽  
Björn Trauzettel
Keyword(s):  
Quantum Dots ◽  
Graphene Quantum Dots ◽  
Nuclear Spins ◽  
Spin Decoherence

scholarly journals Spin decoherence in graphene quantum dots due to hyperfine interaction

2012 ◽  
Vol 86 (8) ◽  
Author(s):  
Moritz Fuchs ◽  
Valentin Rychkov ◽  
Björn Trauzettel
Keyword(s):  
Quantum Dots ◽  
Hyperfine Interaction ◽  
Graphene Quantum Dots ◽  
Spin Decoherence

Preparation of Graphene Quantum Dots and Their Biological Applications

2016 ◽  
Vol 31 (4) ◽  
pp. 337 ◽  
Author(s):  
SUN Xiao-Dan ◽  
LIU Zhong-Qun ◽  
YAN Hao
Keyword(s):  
Quantum Dots ◽  
Graphene Quantum Dots ◽  
Biological Applications

Effect of graphene quantum dots on intestinal imaging and mesenteric microcirculation in mice

2014 ◽  
Vol 35 (4) ◽  
pp. 372
Author(s):  
Yong-qiang MA ◽  
Zhen-guo WANG ◽  
Xue-li GOU ◽  
Na LI ◽  
Ya-qiang FENG ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Graphene Quantum Dots ◽  
Mesenteric Microcirculation

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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