DMRG studies of strongly correlated two-leg ladders
Abstract/Contents
- Abstract
- High temperature superconductivity of unconventional source (i.e. from repulsive interactions) has been studied for more than 25 years and has created a lot of excitement and interest. In this 25 years many things have been understood and several things still elude us. One controversial issue that belongs to the latter group, is the issue of optimal inhomogeneity and the role it plays. In this thesis, I study the effect of inhomogeneity -- in the sense of a complex periodic, mesoscale structure -- in a variety of inhomogeneous models with initial repulsive on-site interaction on a two-leg ladder geometry, on the superconducting correlations and, in turns, to the critical temperature Tc of a superconductor. The first model presented is the checkerboard Hubbard model and several relatives to it on a two-leg ladder geometry, after previous work done on models like this, has been reviewed. In this subject new and exciting results have been presented, involving great enhancement in the superconducting correlations. Finally I discuss another geometry of a two-leg ladder, namely the honeycomb two-leg ladder. The results in this subject are very interesting and surprising, because this model does not present enhancements in the superconducting correlations but rather a suppression of them.
Description
| Type of resource | text |
|---|---|
| Form | electronic; electronic resource; remote |
| Extent | 1 online resource. |
| Publication date | 2013 |
| Issuance | monographic |
| Language | English |
Creators/Contributors
| Associated with | Karakonstantakis, Georgios |
|---|---|
| Associated with | Stanford University, Department of Physics. |
| Primary advisor | Kivelson, Steven |
| Thesis advisor | Kivelson, Steven |
| Thesis advisor | Beasley, Malcolm |
| Thesis advisor | Raghu, Srinivas, 1978- |
| Advisor | Beasley, Malcolm |
| Advisor | Raghu, Srinivas, 1978- |
Subjects
| Genre | Theses |
|---|
Bibliographic information
| Statement of responsibility | Georgios Karakonstantakis. |
|---|---|
| Note | Submitted to the Department of Physics. |
| Thesis | Thesis (Ph.D.)--Stanford University, 2013. |
| Location | electronic resource |
Access conditions
- Copyright
- © 2013 by Georgios Karakonstantakis
- License
- This work is licensed under a Creative Commons Attribution Non Commercial 3.0 Unported license (CC BY-NC).
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