Transient and finite-size effects in transport properties of a quantum wire

dc.creatorSalvay, Mariano J.
dc.creatorIucci, Carlos Aníbal
dc.creatorNaón, Carlos María
dc.date2011-08
dc.date2021-10-06T16:20:29Z
dc.date.accessioned2023-07-15T03:33:02Z
dc.date.available2023-07-15T03:33:02Z
dc.identifierhttp://sedici.unlp.edu.ar/handle/10915/126320
dc.identifierissn:1098-0121
dc.identifierissn:1550-235X
dc.identifier.urihttps://repositorioslatinoamericanos.uchile.cl/handle/2250/7466139
dc.descriptionWe study the time-dependent backscattered current produced in a quantum wire when a local barrier is suddenly switched on. Previous investigations are improved by taking into account the finite length of the device. We establish two different regimes in terms of the relationship between the energy scales associated with the voltage and the length of the system. We show how previous results, valid for wires of infinite length, are modified by the finite size of the system. In particular, our study reveals a rich pattern of temporal steps within which the current suffers an initial relaxation followed by temporary revivals. By employing both analytical and numerical methods we describe peculiar features of this structure. From this analysis one concludes that our results render a recently proposed approach to the determination of the Luttinger parameter, K, more realistic.
dc.descriptionFacultad de Ciencias Exactas
dc.descriptionInstituto de Física La Plata
dc.formatapplication/pdf
dc.languageen
dc.rightshttp://creativecommons.org/licenses/by-nc-sa/4.0/
dc.rightsCreative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0)
dc.subjectCiencias Exactas
dc.subjectFísica
dc.subjectbackscattered current
dc.subjectquantum wire
dc.subjectLuttinger parameter
dc.titleTransient and finite-size effects in transport properties of a quantum wire
dc.typeArticulo
dc.typeArticulo


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