In this thesis theoretical investigations of quantum ballistic transport in semiconductor nanostructures is presented. Particular systems under consideration include quantum wire, quantum dot, and combinations of them. Effects of quantum interference, chaotic scattering, inelastic scattering, many-electron interaction, and junction resonance are examined. Conductance of the system is computed as a quantum scattering process, and fluctuations in conductance and magnetoconductance in ballistic structures are investigated in detail under the influence of the above mentioned physical effects. For the resonant transmission process, evidence is presented of the universal statistics satisfied by the quasi-bound states of the system which mediate the scattering. Computational framework is developed to solve the quantum scattering problem in multi-probe structures, and to include Coulomb interactions and other scattering potentials.
| Identifer | oai:union.ndltd.org:LACETR/oai:collectionscanada.gc.ca:QMM.28952 |
| Date | January 1994 |
| Creators | Wang, Yongjiang. |
| Contributors | Guo, Hong (advisor) |
| Publisher | McGill University |
| Source Sets | Library and Archives Canada ETDs Repository / Centre d'archives des thèses électroniques de Bibliothèque et Archives Canada |
| Language | English |
| Detected Language | English |
| Type | Electronic Thesis or Dissertation |
| Format | application/pdf |
| Coverage | Doctor of Philosophy (Department of Physics.) |
| Rights | All items in eScholarship@McGill are protected by copyright with all rights reserved unless otherwise indicated. |
| Relation | alephsysno: 001447541, proquestno: NN05809, Theses scanned by UMI/ProQuest. |
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