scholarly journals Dynamical control of electron spin coherence in a quantum dot: A theoretical study

2007 ◽  
Vol 75 (20) ◽  
Author(s):  
Wenxian Zhang ◽  
V. V. Dobrovitski ◽  
Lea F. Santos ◽  
Lorenza Viola ◽  
B. N. Harmon
Keyword(s):  
Quantum Dot ◽  
Electron Spin ◽  
Theoretical Study ◽  
Spin Coherence ◽  
Dynamical Control

Non-resonant optical excitation of mode-locked electron spin coherence in (In,Ga)As/GaAs quantum dot ensemble

2012 ◽  
Vol 100 (23) ◽  
pp. 232107 ◽  
Author(s):  
A. Schwan ◽  
S. Varwig ◽  
A. Greilich ◽  
D. R. Yakovlev ◽  
D. Reuter ◽  
...  
Keyword(s):  
Quantum Dot ◽  
Electron Spin ◽  
Optical Excitation ◽  
Spin Coherence ◽  
Gaas Quantum Dot

POLARON IN A QUANTUM DOT UNDER AN ELECTRIC FIELD

2007 ◽  
Vol 21 (24) ◽  
pp. 1635-1642
Author(s):  
MIAN LIU ◽  
WENDONG MA ◽  
ZIJUN LI
Keyword(s):  
Quantum Dot ◽  
Electric Field ◽  
Field Intensity ◽  
Ground State Energy ◽  
Ground State ◽  
Electric Field Intensity ◽  
State Energy ◽  
Theoretical Study ◽  
The Moment ◽  
Transformation Methods

We conducted a theoretical study on the properties of a polaron with electron-LO phonon strong-coupling in a cylindrical quantum dot under an electric field using linear combination operator and unitary transformation methods. The changing relations between the ground state energy of the polaron in the quantum dot and the electric field intensity, restricted intensity, and cylindrical height were derived. The numerical results show that the polar of the quantum dot is enlarged with increasing restricted intensity and decreasing cylindrical height, and with cylindrical height at 0 ~ 5 nm , the polar of the quantum dot is strongest. The ground state energy decreases with increasing electric field intensity, and at the moment of just adding electric field, quantum polarization is strongest.

Theoretical study of excitons in GaAs quantum dot molecules obtained by nanoholes filling

2021 ◽  
Vol 124 ◽  
pp. 105614
Author(s):  
S. Tilouche ◽  
A. Sayari ◽  
M. Omri ◽  
S. Souilem ◽  
L. Sfaxi ◽  
...  
Keyword(s):  
Quantum Dot ◽  
Theoretical Study ◽  
Quantum Dot Molecules ◽  
Gaas Quantum Dot

Proposal for optical U(1) rotations of electron spin trapped in a quantum dot

2006 ◽  
Vol 74 (20) ◽  
Author(s):  
Sophia E. Economou ◽  
L. J. Sham ◽  
Yanwen Wu ◽  
D. G. Steel
Keyword(s):  
Quantum Dot ◽  
Electron Spin
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