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CI APPROACH TO SPECTRA OF QUANTUM DOTS
by
Cong Peng
A Dissertation Presented to the
FACULTY OF THE GRADUATE SCHOOL
UNIVERSITY OF SOUTHERN CALIFORNIA
In Partial Fulfillment of the
Requirements for the Degree
DOCTOR OF PHILOSOPHY
(PHYSICS)
May 2007
Copyright 2007 Cong Peng
Object Description
| Title | CI approach to spectra of quantum dots |
| Author | Peng, Cong |
| Author email | cpeng@usc.edu |
| Degree | Doctor of Philosophy |
| Document type | Dissertation |
| Degree program | Physics |
| School | College of Letters, Arts and Sciences |
| Date defended/completed | 2006-12-06 |
| Date submitted | 2007 |
| Restricted until | Restricted until 23 Feb. 2009. |
| Date published | 2009-02-23 |
| Advisor (committee chair) | Bickers, Eugene |
| Advisor (committee member) |
Haas, Stephan Bozler, Hans M. Thompson, Richard Mak, Chi Ho |
| Abstract | We present a systematic investigation of the electronic spectra of InAs / GaAs quantum dots using the configuration interaction (CI) approach. The approximations and numerical techniques used in modeling the system are described in detail. After solving for the lattice strain distribution, the one-particle energies of electron and hole levels in the quantum dot are calculated. The effects of electron-electron interactions in the confined geometry are studied using a CI approach analogous to that applied in quantum chemistry. The spectra of exciton and trion excitations are then obtained for a range of quantum dot sizes. The results from our approach are compared with those from a previous mean-field theoretical treatment and with experimental data. |
| Keyword | quantum dot; spectrum; CI; many body |
| Language | English |
| Part of collection | University of Southern California dissertations and theses |
| Publisher (of the original version) | University of Southern California |
| Place of publication (of the original version) | Los Angeles, California |
| Publisher (of the digital version) | University of Southern California. Libraries |
| Type | texts |
| Legacy record ID | usctheses-m277 |
| Rights | Peng, Cong |
| Repository name | Libraries, University of Southern California |
| Repository address | Los Angeles, California |
| Repository email | http://www.usc.edu/isd/libraries/services/ask_a_librarian/email/ |
| Filename | etd-Peng-20070223 |
| Archival file | uscthesesreloadpub_Volume40/etd-Peng-20070223.pdf |
Description
| Title | Page 1 |
| Full text | CI APPROACH TO SPECTRA OF QUANTUM DOTS by Cong Peng A Dissertation Presented to the FACULTY OF THE GRADUATE SCHOOL UNIVERSITY OF SOUTHERN CALIFORNIA In Partial Fulfillment of the Requirements for the Degree DOCTOR OF PHILOSOPHY (PHYSICS) May 2007 Copyright 2007 Cong Peng |
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