Projected Entangled Pair States with non-Abelian gauge symmetries: An SU(2) study

Over the last years, Projected Entangled Pair States have demonstrated great power for the study of many body systems, as they naturally describe ground states of gapped many body Hamiltonians, and suggest a constructive way to encode and classify their symmetries. The PEPS study is not only limited...

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Main Authors: Zohar, E, Wahl, T, Burrello, M, Cirac, J
Format: Journal article
Published: Elsevier 2016
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author Zohar, E
Wahl, T
Burrello, M
Cirac, J
author_facet Zohar, E
Wahl, T
Burrello, M
Cirac, J
author_sort Zohar, E
collection OXFORD
description Over the last years, Projected Entangled Pair States have demonstrated great power for the study of many body systems, as they naturally describe ground states of gapped many body Hamiltonians, and suggest a constructive way to encode and classify their symmetries. The PEPS study is not only limited to global symmetries, but has also been extended and applied for local symmetries, allowing to use them for the description of states in lattice gauge theories. In this paper we discuss PEPS with a local, SU(2) gauge symmetry, and demonstrate the use of PEPS features and techniques for the study of a simple family of many body states with a non-Abelian gauge symmetry. We present, in particular, the construction of fermionic PEPS able to describe both two-color fermionic matter and the degrees of freedom of an SU(2) gauge field with a suitable truncation.
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spelling oxford-uuid:8ac0385b-5223-4e16-a757-5cf1f5b2aba42022-03-26T22:33:34ZProjected Entangled Pair States with non-Abelian gauge symmetries: An SU(2) studyJournal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:8ac0385b-5223-4e16-a757-5cf1f5b2aba4Symplectic Elements at OxfordElsevier2016Zohar, EWahl, TBurrello, MCirac, JOver the last years, Projected Entangled Pair States have demonstrated great power for the study of many body systems, as they naturally describe ground states of gapped many body Hamiltonians, and suggest a constructive way to encode and classify their symmetries. The PEPS study is not only limited to global symmetries, but has also been extended and applied for local symmetries, allowing to use them for the description of states in lattice gauge theories. In this paper we discuss PEPS with a local, SU(2) gauge symmetry, and demonstrate the use of PEPS features and techniques for the study of a simple family of many body states with a non-Abelian gauge symmetry. We present, in particular, the construction of fermionic PEPS able to describe both two-color fermionic matter and the degrees of freedom of an SU(2) gauge field with a suitable truncation.
spellingShingle Zohar, E
Wahl, T
Burrello, M
Cirac, J
Projected Entangled Pair States with non-Abelian gauge symmetries: An SU(2) study
title Projected Entangled Pair States with non-Abelian gauge symmetries: An SU(2) study
title_full Projected Entangled Pair States with non-Abelian gauge symmetries: An SU(2) study
title_fullStr Projected Entangled Pair States with non-Abelian gauge symmetries: An SU(2) study
title_full_unstemmed Projected Entangled Pair States with non-Abelian gauge symmetries: An SU(2) study
title_short Projected Entangled Pair States with non-Abelian gauge symmetries: An SU(2) study
title_sort projected entangled pair states with non abelian gauge symmetries an su 2 study
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AT wahlt projectedentangledpairstateswithnonabeliangaugesymmetriesansu2study
AT burrellom projectedentangledpairstateswithnonabeliangaugesymmetriesansu2study
AT ciracj projectedentangledpairstateswithnonabeliangaugesymmetriesansu2study