University of Illinois at Urbana-Champaign
Real-Time Path Integral Simulations of Variable Frequency Phonons and Spin Reservoirs in Condensed Materials
Abstract
dc:descriptionIn the following Feynman path integral technology is used to describe the influence of condensed media on several quantum systems. A comparison of vibrational adiabatic methods and exact path integral formulations is made in the context of variable frequency oscillators. Particular attention is paid to the motion of impurities in a semiconductor lattice and reverse isotopic effects arising due to variable frequency oscillator coordinate(s). In addition, a comparison is made between the oft studied spin-boson problem and a model lattice of spins interacting with a two-level system. Significant differences in temperature and coupling dependence of the two model reservoirs are illustrated and discussed.
Degree
thesis:*- Name thesis:degree_name
- Ph.D.
- Level thesis:degree_level
- Dissertation
- Discipline thesis:degree_discipline
- Chemistry
- Grantor
- University of Illinois at Urbana-Champaign
- Year dc:date
- 2015
Author and committee
dc:creator, dc:contributor.*- Author dc:creator
-
- Forsythe, Kelsey McEntire
- Contributors dc:contributor
-
- Makri, Nancy
Subjects
dc:subject × 1Rights
- Language dc:language
- eng
Identifiers
dc:identifier.*- Identifier
- (MiAaPQ)AAI9921687
- OAI identifier oai:identifier
- oai:www.ideals.illinois.edu:2142/84435