scholarly journals Spin Dynamics of Electron Nuclei Coupled System in a Double Quantum Dot

2007 ◽  
Author(s):  
Ö. Çakir ◽  
T. Takagahara
Keyword(s):  
Quantum Dot ◽  
Spin Dynamics ◽  
Coupled System ◽  
Double Quantum ◽  
Double Quantum Dot

scholarly journals Steady-State Entanglement in the Nuclear Spin Dynamics of a Double Quantum Dot

2013 ◽  
Vol 111 (24) ◽  
Author(s):  
M. J. A. Schuetz ◽  
E. M. Kessler ◽  
L. M. K. Vandersypen ◽  
J. I. Cirac ◽  
G. Giedke
Keyword(s):  
Steady State ◽  
Quantum Dot ◽  
Nuclear Spin ◽  
Spin Dynamics ◽  
Double Quantum ◽  
Double Quantum Dot

SPIN CORRELATION IN A DOUBLE QUANTUM DOT-QUANTUM WIRE COUPLED SYSTEM

2008 ◽  
Author(s):  
S. SASAKI ◽  
S. KANG ◽  
S. MIYASHITA ◽  
T. MARUYAMA ◽  
H. TAMURA ◽  
...  
Keyword(s):  
Quantum Dot ◽  
Quantum Wire ◽  
Coupled System ◽  
Spin Correlation ◽  
Double Quantum ◽  
Double Quantum Dot

scholarly journals Phonon-assisted relaxation between triplet and singlet states in a self-assembled double quantum dot

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Krzysztof Gawarecki ◽  
Paweł Machnikowski
Keyword(s):  
Quantum Dot ◽  
Spin Dynamics ◽  
Double Quantum ◽  
Double Quantum Dot ◽  
Model Combining ◽  
Singlet States ◽  
Spin Singlet ◽  
Electric And Magnetic Fields ◽  
Self Assembled ◽  
Interaction Approach

AbstractWe study theoretically phonon-induced spin dynamics of two electrons confined in a self-assembled double quantum dot. We calculate the transition rates and time evolution of occupations for the spin-triplet and spin-singlet states. We characterize the relative importance of various relaxation channels, including two-phonon processes, as a function of the electric and magnetic fields. The simulations are based on a model combining the eight-band $$\varvec{k}\!\cdot \!\varvec{p}$$ k · p method and configuration-interaction approach. We show that the electron g-factor mismatch between the Zeeman doublets localized on different dots opens a relatively fast triplet-singlet phonon-assisted relaxation channel. We also demonstrate, that the relaxation near the triplet-singlet anticrossing is slowed down up to several orders of magnitude due to vanishing of some relaxation channels.

scholarly journals Nonlocal control of the Kondo effect in a double quantum dot–quantum wire coupled system

2006 ◽  
Vol 73 (16) ◽  
Author(s):  
S. Sasaki ◽  
S. Kang ◽  
K. Kitagawa ◽  
M. Yamaguchi ◽  
S. Miyashita ◽  
...  
Keyword(s):  
Quantum Dot ◽  
Quantum Wire ◽  
Kondo Effect ◽  
Coupled System ◽  
Double Quantum ◽  
Double Quantum Dot
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