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A Two-Dimensional Analogue of the Luttinger Model
KTH, Skolan för teknikvetenskap (SCI), Teoretisk fysik, Matematisk fysik.
2010 (engelsk)Inngår i: Letters in Mathematical Physics, ISSN 0377-9017, E-ISSN 1573-0530, Vol. 92, nr 2, s. 109-124Artikkel i tidsskrift (Fagfellevurdert) Published
Abstract [en]

We present a fermion model that is, as we suggest, a natural 2D analogue of the Luttinger model. We derive this model as a partial continuum limit of a 2D spinless lattice fermion system with local interactions and away from half filling. In this derivation, we use certain approximations that we motivate by physical arguments. We also present mathematical results that allow an exact treatment of parts of the degrees of freedom of this model by bosonization, and we propose to treat the remaining degrees of freedom by mean field theory.

sted, utgiver, år, opplag, sider
2010. Vol. 92, nr 2, s. 109-124
Emneord [en]
lattice fermions, quantum field theory in 2+1 dimensions, bosonization
HSV kategori
Identifikatorer
URN: urn:nbn:se:kth:diva-27942DOI: 10.1007/s11005-010-0388-2ISI: 000277243800002Scopus ID: 2-s2.0-77952097110OAI: oai:DiVA.org:kth-27942DiVA, id: diva2:382756
Forskningsfinansiär
EU, European Research Council, MRTN-CT-2004-5652Swedish Research Council
Merknad
QC 20110103Tilgjengelig fra: 2011-01-03 Laget: 2011-01-03 Sist oppdatert: 2017-12-11bibliografisk kontrollert

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