Skip to main content

Path Integral Monte Carlo Simulations of Semiconductor Quantum Dots and Quantum Wires


Abstract he accurate simulation of many-body quantum systems is a challenge for computational physics. Quantum Monte Carlo methods are a class of algorithms that can be used to solve the many-body problem. I study many-body quantum systems with Path Integral Monte Carlo techniques in three related areas of semiconductor physics: (1) the role of correlation in exchange coupling of spins in double quantum dots, (2) the degree of correlation and hyperpolarizability in Stark shifts in InGaAs/GaAs dots, and (3) van der Waals interactions between 1-D metallic quantum wires at finite temperature. The two-site model is one of the simplest quantum problems, yet the quantitative mapping from a three-dimensional model of a quantum double dot to an effective tw... (more)
Created Date 2011
Contributor Zhang, Lei (Author) / Shumway, John (Advisor) / Schmidt, Kevin (Committee member) / Bennet, Peter (Committee member) / Menendez, Jose (Committee member) / Drucker, Jeff (Committee member) / Arizona State University (Publisher)
Subject Physics
Type Doctoral Dissertation
Extent 111 pages
Language English
Copyright
Reuse Permissions All Rights Reserved
Note Ph.D. Physics 2011
Collaborating Institutions Graduate College / ASU Library
Additional Formats MODS / OAI Dublin Core / RIS


  Full Text
3.0 MB application/pdf
Download Count: 1090

Description Dissertation/Thesis