scholarly journals Quantum dynamics of electron–nuclei coupled system in quantum dots

2007 ◽  
Vol 40 (2) ◽  
pp. 379-382 ◽  
Author(s):  
Özgür Çakır ◽  
Toshihide Takagahara
Keyword(s):  
Quantum Dots ◽  
Quantum Dynamics ◽  
Coupled System

scholarly journals Formation of non-classical optical states in spaser systems under control of an external magnetic field

2019 ◽  
Vol 220 ◽  
pp. 03017
Author(s):  
Mikhail Gubin ◽  
Alexei Prokhorov
Keyword(s):  
Magnetic Field ◽  
Quantum Dots ◽  
External Magnetic Field ◽  
Metal Nanoparticles ◽  
Quantum Dynamics ◽  
Semiconductor Quantum Dots ◽  
Exciton Interaction ◽  
Photon States

The work is focused on the investigation of features of quantum dynamics for photons in spaser systems consisting of metal nanoparticles (NP) and semiconductor quantum dots (QDs). The non-classical photon states generation in a three-particle spaser system with nonlinear plasmon-exciton interaction is predicted.

Photochromic control of a plasmon–quantum dots coupled system

Nanoscale ◽  
2019 ◽  
Vol 11 (1) ◽  
pp. 258-265 ◽  
Author(s):  
Gwénaëlle Lamri ◽  
Artur Movsesyan ◽  
Edite Figueiras ◽  
Jana B. Nieder ◽  
Jean Aubard ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Quantum Dot ◽  
Light Emission ◽  
Coupled System ◽  
System P

The enhancement and the control of quantum dot (QD) light emission is a challenge for many applications.

Dynamic changes in multiple quantum dots-cavity coupled system

2014 ◽  
Vol 324 ◽  
pp. 172-177 ◽  
Author(s):  
Yiwei Peng ◽  
Zhongyuan Yu ◽  
Yumin Liu ◽  
Wen Zhang ◽  
Han Ye
Keyword(s):  
Quantum Dots ◽  
Coupled System ◽  
Multiple Quantum ◽  
Dynamic Changes

scholarly journals A general approach to quantum dynamics using a variational master equation: Application to phonon-damped Rabi rotations in quantum dots

2011 ◽  
Vol 84 (8) ◽  
Author(s):  
Dara P. S. McCutcheon ◽  
Nikesh S. Dattani ◽  
Erik M. Gauger ◽  
Brendon W. Lovett ◽  
Ahsan Nazir
Keyword(s):  
Quantum Dots ◽  
Master Equation ◽  
Quantum Dynamics

scholarly journals A Fokker–Planck reaction model for the epitaxial growth and shape transition of quantum dots

2017 ◽  
Vol 473 (2206) ◽  
pp. 20170308 ◽  
Author(s):  
Chaozhen Wei ◽  
Brian J. Spencer
Keyword(s):  
Quantum Dots ◽  
Epitaxial Growth ◽  
Planck Equation ◽  
Coupled System ◽  
Transition Process ◽  
Reaction Model ◽  
Shape Transition ◽  
Mean Field Model ◽  
Shape Transitions ◽  
Fokker Planck

We construct a Fokker–Planck reaction (FPR) model to investigate the dynamics of the coupled epitaxial growth and shape transition process of an array of quantum dots (QDs). The FPR model is based on a coupled system of Fokker–Planck equations wherein the distribution of each island type is governed by its own Fokker–Planck equation for growth, with reaction terms describing the shape transitions between islands of different types including asymmetric shapes. The reaction terms for the shape transitions depend on the island size and are determined from explicit calculations of the lowest barrier pathway for each shape transition. This mean-field model enables us to consider the kinetics of asymmetric shape transitions and study the evolution of island shape distributions during the coupled growth and transition process. Asymmetric metastable shapes play a crucial role in the dynamics, with asymmetric QDs comprising up to 10% of the population, and with up to 100% of the shape transitions passing through asymmetric shapes. Moreover, we find that the characteristic multimodal distribution of pyramid/dome QD coarsening can be eliminated at sufficiently high temperature and deposition rate.

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