Change of the Chern number at band crossings

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dc.creatorBellissard, J.
dc.date1995-04-07
dc.date.accessioned2026-07-07T03:07:40Z
dc.date.available2026-07-07T03:07:40Z
dc.descriptionLet $H(ε, x)$ be a finite dimensional hermitian matrix depending on the variable $x$ taking its values on a 2D manifold and changing with $ε$. If at $ε=0$ two bands are touching, we give a formula for the change of Chern number of these bands as $ε$ passes through zero.
dc.descriptionuuencoded version, 6 pages latex, 2 postscript figures included
dc.identifierhttps://arxiv.org/abs/cond-mat/9504030
dc.identifierhttp://arxiv.org/abs/cond-mat/9504030
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/27252
dc.subjectCondensed Matter
dc.titleChange of the Chern number at band crossings
dc.typetext

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