Sub-second electron spin lifetimes in quantum dots at zero applied magnetic field due to alignment of QD nuclei

2006 ◽  
Vol 243 (15) ◽  
pp. 3922-3927 ◽  
Author(s):  
R. Oulton ◽  
S. Yu. Verbin ◽  
T. Auer ◽  
R. V. Cherbunin ◽  
A. Greilich ◽  
...  
Keyword(s):  
Magnetic Field ◽  
Quantum Dots ◽  
Electron Spin ◽  
Applied Magnetic Field

scholarly journals Magnetic field dependence of the electron spin revival amplitude in periodically pulsed quantum dots

2018 ◽  
Vol 98 (15) ◽  
Author(s):  
Iris Kleinjohann ◽  
Eiko Evers ◽  
Philipp Schering ◽  
Alex Greilich ◽  
Götz S. Uhrig ◽  
...  
Keyword(s):  
Magnetic Field ◽  
Quantum Dots ◽  
Field Dependence ◽  
Electron Spin ◽  
Magnetic Field Dependence

scholarly journals Kondo-excitons and Auger processes in self-assembled quantum dots

2002 ◽  
Vol 737 ◽  
Author(s):  
A. O. Govorov ◽  
K. Karrai ◽  
R. J. Warburton ◽  
A. V. Kalameitsev
Keyword(s):  
Magnetic Field ◽  
Quantum Dots ◽  
Electron Spin ◽  
Electron Gas ◽  
Kondo Temperature ◽  
Two Dimensional ◽  
Wetting Layer ◽  
Voltage Dependent ◽  
Self Assembled ◽  
The Continuum

ABSTRACTWe describe theoretically novel excitons in self-assembled quantum dots interacting with a two-dimensional (2D) electron gas in the wetting layer. In the presence of the Fermi sea, the optical lines become strongly voltage-dependent. If the electron spin is nonzero, the width of optical lines is given by kBTK, where TK is Kondo temperature. If the spin is zero, the exciton couples with the continuum due to Auger-like processes. This leads to anticrossings in a magnetic field. Such states can be called Kondo-Anderson excitons. Some of the described phenomena are observed in recent experiments.

Energy Spectra of the Low-Lying State in N-Layer Quantum Dots

2013 ◽  
Vol 483 ◽  
pp. 170-173
Author(s):  
An Mei Wang
Keyword(s):  
Magnetic Field ◽  
Quantum Dots ◽  
Angular Momentum ◽  
External Magnetic Field ◽  
Quantum Dot ◽  
Applied Magnetic Field ◽  
Ground State ◽  
Weak Coupling ◽  
State Energy ◽  
Energy Spectra

A method is proposed to exactly diagonalize the Hamiltonian of a N-layer quantum dot containing a single electron in each dot in arbitrary magnetic fields. the energy spectra of the dot are calculated as a function of the applied magnetic field. We find disco-ntinuous ground-state energy transitions induced by an external magnetic field in the case of strong coupling. However, in the case of weak coupling, such a transition does not occur and the angular momentum remains zero.

scholarly journals Longitudinal wave function control in single quantum dots with an applied magnetic field

2015 ◽  
Vol 5 (1) ◽  
Author(s):  
Shuo Cao ◽  
Jing Tang ◽  
Yunan Gao ◽  
Yue Sun ◽  
Kangsheng Qiu ◽  
...  
Keyword(s):  
Magnetic Field ◽  
Quantum Dots ◽  
Wave Function ◽  
Longitudinal Wave ◽  
Applied Magnetic Field ◽  
Single Quantum ◽  
Single Quantum Dots
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