Loss, D.. (1992) Parity effects in a Luttinger liquid : diamagnetic and paramagnetic ground states. Physical review letters, Vol. 69, H. 2. pp. 343-346.
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Official URL: http://edoc.unibas.ch/dok/A5254799
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Abstract
The concept of a Luttinger liquid in 1 D is extended to include twisted boundary conditions on a ring and mesoscopic parity effects due to evenness and oddness of the particle number N0. Using Haldane`s notion of topological excitations, a proof of Leggett`s conjecture is presented, stating that the ground state of interacting 1 D quantum systems is diamagnetic or paramagnetic depending on the parity of N0. The persistent currents produced by an Aharonov-Bohm flux are calculated and shown to have period and amplitude that are in agreement with recent experiments.
| Faculties and Departments: | 05 Faculty of Science > Departement Physik > Physik > Theoretische Physik Mesoscopics (Loss) |
|---|---|
| UniBasel Contributors: | Loss, Daniel |
| Item Type: | Article, refereed |
| Article Subtype: | Research Article |
| Publisher: | American Physical Society |
| ISSN: | 0031-9007 |
| Note: | Publication type according to Uni Basel Research Database: Journal article |
| Identification Number: | |
| Last Modified: | 22 Mar 2012 14:26 |
| Deposited On: | 22 Mar 2012 13:52 |
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