Factorization and criticality in finite XXZ systems of arbitrary spin

We analyze ground state (GS) factorization in general arrays of spinss_iwithXXZcouplings immersed in nonuniform fields. It is shown that an exceptionally degenerate set of completely separable symmetry-breaking GS's can arise for a wide range of field configurations, at a quantum critical point...

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Autores principales: Cerezo de la Roca, Marco Vinicio Sebastián, Rossignoli, Raúl Dante, Canosa, Norma Beatriz, Rios, E.
Formato: Articulo
Lenguaje:Inglés
Publicado: 2017
Materias:
Física
Quantum Spin Chains
quantum critical points
Factorization
Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/75198
Aporte de:
SEDICI (UNLP) de Universidad Nacional de La Plata
id I19-R120-10915-75198
record_format dspace
institution Universidad Nacional de La Plata
institution_str I-19
repository_str R-120
collection SEDICI (UNLP)
language Inglés
topic Física
Quantum Spin Chains
quantum critical points
Factorization
spellingShingle Física
Quantum Spin Chains
quantum critical points
Factorization
Cerezo de la Roca, Marco Vinicio Sebastián
Rossignoli, Raúl Dante
Canosa, Norma Beatriz
Rios, E.
Factorization and criticality in finite XXZ systems of arbitrary spin
topic_facet Física
Quantum Spin Chains
quantum critical points
Factorization
description We analyze ground state (GS) factorization in general arrays of spinss_iwithXXZcouplings immersed in nonuniform fields. It is shown that an exceptionally degenerate set of completely separable symmetry-breaking GS's can arise for a wide range of field configurations, at a quantum critical point where all GS magnetization plateaus merge. Such configurations include alternating fields as well as zero bulk field solutions with edge fields only and intermediate solutions with zero field at specific sites, valid ford-dimensional arrays. The definite magnetization projected GS's at factorization can be analytically determined and depend only on the exchange anisotropies, exhibiting critical entanglement properties. We also show that some factorization compatible field configurations may result in field-induced frustration and nontrivial behavior at strong fields.
format Articulo
Articulo
author Cerezo de la Roca, Marco Vinicio Sebastián
Rossignoli, Raúl Dante
Canosa, Norma Beatriz
Rios, E.
author_facet Cerezo de la Roca, Marco Vinicio Sebastián
Rossignoli, Raúl Dante
Canosa, Norma Beatriz
Rios, E.
author_sort Cerezo de la Roca, Marco Vinicio Sebastián
title Factorization and criticality in finite XXZ systems of arbitrary spin
title_short Factorization and criticality in finite XXZ systems of arbitrary spin
title_full Factorization and criticality in finite XXZ systems of arbitrary spin
title_fullStr Factorization and criticality in finite XXZ systems of arbitrary spin
title_full_unstemmed Factorization and criticality in finite XXZ systems of arbitrary spin
title_sort factorization and criticality in finite xxz systems of arbitrary spin
publishDate 2017
url http://sedici.unlp.edu.ar/handle/10915/75198
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AT rossignolirauldante factorizationandcriticalityinfinitexxzsystemsofarbitraryspin
AT canosanormabeatriz factorizationandcriticalityinfinitexxzsystemsofarbitraryspin
AT riose factorizationandcriticalityinfinitexxzsystemsofarbitraryspin
bdutipo_str Repositorios
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