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Berry phase induced persistent current in mesoscopic systems | | Shiro Kawabata
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16 Dec 1999 | | Journal: | "Statistical Physics" edited by M. Tokuyama and I. Oppenheim (AIP, New York, 2000) p.738-740. | | Subject: | Mesoscopic Systems and Quantum Hall Effect; Disordered Systems and Neural Networks | cond-mat.mes-hall cond-mat.dis-nn quant-ph | | Affiliation: | ETL, Japan | | Abstract: | Since the discovery of the Berry phase, there has been much interest in the study of topological effects in the fields of quantum mechanics and condensed matter physics. In this paper we investigate the persistent charge current in mesoscopic disorderd rings and compute the disorder averaged persistent current using the diagrammatic method. We find that within the adiabatic regime the average current oscillates as a function of the geometric flux which is related to the Berry phase. | | Source: | arXiv, cond-mat/9912298 | | Services: | Forum | Review | PDF | Favorites | |
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