Non-Markovian Dynamics of Charge Carriers in Quantum Dots
Abstract
We have investigated the dynamics of bound particles in multilevel current-carrying quantum dots. We look specifically in the regime of resonant tunnelling transport, where several channels are available for transport. Through a non-Markovian formalism under the Born approximation, we investigate the real-time evolution of the confined particles including transport-induced decoherence and relaxation. In the case of a coherent superposition between states with different particle number, we find that a Fock-space coherence may be preserved even in the presence of tunneling into and out of the dot. Real-time results are presented for various asymmetries of tunneling rates into different orbitals.
Keywords
Cite
@article{arxiv.0802.3928,
title = {Non-Markovian Dynamics of Charge Carriers in Quantum Dots},
author = {Eduardo Vaz and Jordan Kyriakidis},
journal= {arXiv preprint arXiv:0802.3928},
year = {2008}
}
Comments
9 pages, 3 figures, International Workshop on Physics-Based Mathematical Models for Low-Dimensional Semiconductor Nanostructures. BIRS, November 18-23, 2007