scholarly journals Quantum dot as a spin-current diode: A master-equation approach

2007 ◽  
Vol 75 (16) ◽  
Author(s):  
F. M. Souza ◽  
J. C. Egues ◽  
A. P. Jauho
Keyword(s):  
Quantum Dot ◽  
Master Equation ◽  
Spin Current ◽  
Equation Approach ◽  
Master Equation Approach

Decoherence Effects in Arrays of Coupled Quantum Dots

2000 ◽  
Vol 642 ◽  
Author(s):  
E. Cota ◽  
F. Rojas ◽  
S. E. Ulloa
Keyword(s):  
Quantum Dots ◽  
Quantum Dot ◽  
Master Equation ◽  
Dynamical Response ◽  
Equation Approach ◽  
Phonon Interaction ◽  
Electron Phonon Interaction ◽  
Dissipative Effects ◽  
Master Equation Approach ◽  
Account Electron

ABSTRACTWe study the dynamics of the charge distribution (polarization) in an array of four quantum dots located at the corners of a square. The array has two extra electrons in a neutralizing background. We take into account electron-phonon interaction effects using a quantum Markovian master equation approach. Results show that dissipative effects are determinant in the dynamical response of a quantum-dot cell close to a nearby driver cell with prescribed polarization varying with time. The response is shown to depend strongly on temperature.

scholarly journals Stepwise introduction of model complexity in a generalized master equation approach to time-dependent transport

2012 ◽  
Vol 61 (2-3) ◽  
pp. 305-316 ◽  
Author(s):  
V. Gudmundsson ◽  
O. Jonasson ◽  
Th. Arnold ◽  
C-S. Tang ◽  
H.-S. Goan ◽  
...  
Keyword(s):  
Master Equation ◽  
Time Dependent ◽  
Model Complexity ◽  
Equation Approach ◽  
Master Equation Approach ◽  
Dependent Transport ◽  
Generalized Master Equation
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