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Article: Weakly nonlinear quantum transport: An exactly solvable model

TitleWeakly nonlinear quantum transport: An exactly solvable model
Authors
KeywordsPhysics
Issue Date1997
PublisherAmerican Physical Society. The Journal's web site is located at http://prb.aps.org/
Citation
Physical Review B (Condensed Matter), 1997, v. 55 n. 15, p. 9763-9769 How to Cite?
AbstractWe have studied the weakly nonlinear quantum transport properties of a two-dimensional quantum wire that can be solved exactly. The nonlinear transport coefficients have been calculated and interesting physical properties revealed. In particular we found that as the incoming electron energy approaches a resonant point given by energy E=Er, where the transport is characterized by a complete reflection, the second-order nonlinear conductance changes its sign. We have also investigated the establishment of the gauge-invariance condition. We found that for systems with a finite scattering region, correction terms to the theoretical formalism are needed to preserve the gauge invariance. These corrections were derived analytically for this model.
Persistent Identifierhttp://hdl.handle.net/10722/43210
ISSN
2001 Impact Factor: 3.07
ISI Accession Number ID

 

DC FieldValueLanguage
dc.contributor.authorWang, Jen_HK
dc.contributor.authorZheng, Qen_HK
dc.contributor.authorGuo, Hen_HK
dc.date.accessioned2007-03-23T04:41:22Z-
dc.date.available2007-03-23T04:41:22Z-
dc.date.issued1997en_HK
dc.identifier.citationPhysical Review B (Condensed Matter), 1997, v. 55 n. 15, p. 9763-9769en_HK
dc.identifier.issn0163-1829en_HK
dc.identifier.urihttp://hdl.handle.net/10722/43210-
dc.description.abstractWe have studied the weakly nonlinear quantum transport properties of a two-dimensional quantum wire that can be solved exactly. The nonlinear transport coefficients have been calculated and interesting physical properties revealed. In particular we found that as the incoming electron energy approaches a resonant point given by energy E=Er, where the transport is characterized by a complete reflection, the second-order nonlinear conductance changes its sign. We have also investigated the establishment of the gauge-invariance condition. We found that for systems with a finite scattering region, correction terms to the theoretical formalism are needed to preserve the gauge invariance. These corrections were derived analytically for this model.en_HK
dc.format.extent159151 bytes-
dc.format.extent25600 bytes-
dc.format.extent5108 bytes-
dc.format.mimetypeapplication/pdf-
dc.format.mimetypeapplication/msword-
dc.format.mimetypetext/plain-
dc.languageengen_HK
dc.publisherAmerican Physical Society. The Journal's web site is located at http://prb.aps.org/en_HK
dc.rightsCreative Commons: Attribution 3.0 Hong Kong License-
dc.rightsPhysical Review B (Condensed Matter). Copyright © American Physical Society.en_HK
dc.subjectPhysicsen_HK
dc.titleWeakly nonlinear quantum transport: An exactly solvable modelen_HK
dc.typeArticleen_HK
dc.identifier.openurlhttp://library.hku.hk:4550/resserv?sid=HKU:IR&issn=0163-1829&volume=55&issue=15&spage=9763&epage=9769&date=1997&atitle=Weakly+nonlinear+quantum+transport:+An+exactly+solvable+modelen_HK
dc.description.naturepublished_or_final_versionen_HK
dc.identifier.doi10.1103/PhysRevB.55.9763en_HK
dc.identifier.scopuseid_2-s2.0-0008746178-
dc.identifier.hkuros29334-
dc.identifier.isiWOS:A1997WV25100097-

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