The fractional Aharonov-Bohm effect in mesoscopic rings
We study the effects of correlations on a one-dimensional ring threaded by a uniform magnetic flux. In order to describe the interaction between particles, we work in the framework of the U = ∞ Hubbard model and the t-J z and t-J z -J t models. We focus on the dilute limit. Our results suggest the p...
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| Acceso en línea: | http://hdl.handle.net/20.500.12110/paper_09538984_v8_n44_p8583_Ferrari |
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todo:paper_09538984_v8_n44_p8583_Ferrari2023-10-03T15:51:34Z The fractional Aharonov-Bohm effect in mesoscopic rings Ferrari, V. Chiappe, G. We study the effects of correlations on a one-dimensional ring threaded by a uniform magnetic flux. In order to describe the interaction between particles, we work in the framework of the U = ∞ Hubbard model and the t-J z and t-J z -J t models. We focus on the dilute limit. Our results suggest the possibility that the persistent current has an anomalous periodicity φ 0 /p, where p is an integer in the range 2 ≤ p ≤ N e (N e is the number of particles in the ring and φ 0 is the flux quantum). We find that this result depends neither on disorder nor on the detailed form of the interaction, while there is still on-site infinite repulsion. Fil:Ferrari, V. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. JOUR info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar http://hdl.handle.net/20.500.12110/paper_09538984_v8_n44_p8583_Ferrari |
| institution |
Universidad de Buenos Aires |
| institution_str |
I-28 |
| repository_str |
R-134 |
| collection |
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) |
| description |
We study the effects of correlations on a one-dimensional ring threaded by a uniform magnetic flux. In order to describe the interaction between particles, we work in the framework of the U = ∞ Hubbard model and the t-J z and t-J z -J t models. We focus on the dilute limit. Our results suggest the possibility that the persistent current has an anomalous periodicity φ 0 /p, where p is an integer in the range 2 ≤ p ≤ N e (N e is the number of particles in the ring and φ 0 is the flux quantum). We find that this result depends neither on disorder nor on the detailed form of the interaction, while there is still on-site infinite repulsion. |
| format |
JOUR |
| author |
Ferrari, V. Chiappe, G. |
| spellingShingle |
Ferrari, V. Chiappe, G. The fractional Aharonov-Bohm effect in mesoscopic rings |
| author_facet |
Ferrari, V. Chiappe, G. |
| author_sort |
Ferrari, V. |
| title |
The fractional Aharonov-Bohm effect in mesoscopic rings |
| title_short |
The fractional Aharonov-Bohm effect in mesoscopic rings |
| title_full |
The fractional Aharonov-Bohm effect in mesoscopic rings |
| title_fullStr |
The fractional Aharonov-Bohm effect in mesoscopic rings |
| title_full_unstemmed |
The fractional Aharonov-Bohm effect in mesoscopic rings |
| title_sort |
fractional aharonov-bohm effect in mesoscopic rings |
| url |
http://hdl.handle.net/20.500.12110/paper_09538984_v8_n44_p8583_Ferrari |
| work_keys_str_mv |
AT ferrariv thefractionalaharonovbohmeffectinmesoscopicrings AT chiappeg thefractionalaharonovbohmeffectinmesoscopicrings AT ferrariv fractionalaharonovbohmeffectinmesoscopicrings AT chiappeg fractionalaharonovbohmeffectinmesoscopicrings |
| _version_ |
1807319663360606208 |