Density-Matrix Spectra of Solvable Fermionic Systems

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dc.creatorChung, Ming-Chiang
dc.creatorPeschel, Ingo
dc.date2001-03-14
dc.date2001-05-10
dc.date.accessioned2026-07-07T12:37:39Z
dc.date.available2026-07-07T12:37:39Z
dc.descriptionWe consider non-interacting fermions on a lattice and give a general result for the reduced density matrices corresponding to parts of the system. This allows to calculate their spectra, which are essential in the DMRG method, by diagonalizing small matrices. We discuss these spectra and their typical features for various fermionic quantum chains and for the two-dimensional tight-binding model.
dc.description12 pages and 9 figures
dc.identifierhttps://arxiv.org/abs/cond-mat/0103301
dc.identifierhttp://arxiv.org/abs/cond-mat/0103301
dc.identifierPhys.Rev.B64:064412,2001
dc.identifierdoi:10.1103/PhysRevB.64.064412
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/218515
dc.subjectStatistical Mechanics
dc.subjectAstrophysics
dc.subjectStrongly Correlated Electrons
dc.titleDensity-Matrix Spectra of Solvable Fermionic Systems
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