Orbital-selective Mott transitions in the 2-band J_z-model: a high-precision quantum Monte Carlo study

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dc.creatorvan Dongen, P. G. J.
dc.creatorKnecht, C.
dc.creatorBlümer, N.
dc.date2005-07-28
dc.date.accessioned2026-07-07T06:25:11Z
dc.date.available2026-07-07T06:25:11Z
dc.descriptionUsing high-precision quantum Monte Carlo (QMC) simulations within the framework of dynamical mean field theory (DMFT), we show that the anisotropic degenerate two-orbital Hubbard model contains two consecutive orbital-selective Mott transitions (OSMTs) even in the absence of spin-flip terms and pair-hopping processes. In order to reveal the second transition we carefully analyze the low-frequency part of the self-energy and the local spectral functions. This paper extends our previous work to lower temperatures. We discuss the nature - in particular the order - of both Mott transitions and list various possible extensions.
dc.description4 pages, pss style; presented at conference "Physics of Magnetism", Poznan (Poland), June 24-27, 2005
dc.identifierhttps://arxiv.org/abs/cond-mat/0507682
dc.identifierhttp://arxiv.org/abs/cond-mat/0507682
dc.identifierphys. stat. sol. (b) 243, 116 (2006)
dc.identifierdoi:10.1002/pssb.200562449
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/96771
dc.subjectStrongly Correlated Electrons
dc.titleOrbital-selective Mott transitions in the 2-band J_z-model: a high-precision quantum Monte Carlo study
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