Dynamics of Electron Coherence in Mesoscopic Quantum Transport and Interference Devices

Abstract

In this thesis we investigate electron coherence in quantum transport and interference devices In particular we specifically focus on the physical properties of a double-quantum-dot Aharonov-Bohm interferometer This simple system is an ideal platform for exploring the issues of quantum coherence dissipation and interference that prevail in many quantum transport systems in a unified framework By solving an exact master equation we study explicitly the dynamics of the full electronic configurations of the double-quantum-dot system We also investigate the transient transport dynamics of such interferometer We further make an extension to include spin-orbit interaction in the same setup and examine the time-dependent spin-resolved transport dynamics By comprehending the properties of various physical quantities we provide a perspective on electron coherence in quantum transport and interference devices

Date of Award	2014 Jun 27
Original language	English
Supervisor	Wei-Min Zhang (Supervisor)