scholarly journals Singlet-triplet avoided crossings and effectivegfactor versus spatial orientation of spin-orbit-coupled quantum dots

2011 ◽  
Vol 83 (3) ◽  
Author(s):  
M. P. Nowak ◽  
B. Szafran
Keyword(s):  
Quantum Dots ◽  
Spatial Orientation ◽  
Spin Orbit ◽  
Coupled Quantum Dots ◽  
Avoided Crossings

Bonding-Antibonding Ground States Transition in Coupled Quantum Dots

2012 ◽  
Vol 220-223 ◽  
pp. 2017-2021
Author(s):  
Nai Yun Tang
Keyword(s):  
Quantum Dots ◽  
Single Particle ◽  
Ground State ◽  
State Transition ◽  
Ground States ◽  
Orbit Interaction ◽  
Spin Orbit ◽  
Ground State Transition ◽  
Coupled Quantum Dots ◽  
Molecular Ground State

The two lowest single-particle hole states in two vertically coupled quntum dots (CQDs) are investigated by using the six-band k • p model. A bonding–antibonding ground-state transition is observed with an increasing interdot distance. This result is counterintuitive since the antibonding molecular ground state is never observed in natural diatomic molecules. By comparing the wavafunction component of hole, the results verify that the reordering of bonding and antibonding orbitals with an increasing interdot distance is caused by spin–orbit interaction of holes.

Polarization selective magneto-optical study on the coupled quantum dots using resonant excitation

2004 ◽  
Vol 21 (2-4) ◽  
pp. 376-380 ◽  
Author(s):  
S Lee ◽  
D.Y Shin ◽  
H.S Lee ◽  
J.Y Lee ◽  
M Dobrowolska ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Resonant Excitation ◽  
Optical Study ◽  
Coupled Quantum Dots
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