The Folded Spin-1/2 XXZ Model: I. Diagonalisation, Jamming, and Ground State Properties

We study an effective Hamiltonian generating time evolution of states on intermediate time scales in the strong-coupling limit of the spin-1/2 XXZ model. To leading order, it describes an integrable model with local interactions. We solve it completely by means of a coordinate Bethe Ansatz that mani...

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Bibliographic Details
Published inSciPost physics Vol. 4; no. 2; p. 010
Main Authors Zadnik, Lenart, Fagotti, Maurizio
Format Journal Article
LanguageEnglish
Published SciPost Foundation 01.04.2021
SciPost
Subjects
Condensed Matter
Physics
Statistical Mechanics
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Summary:We study an effective Hamiltonian generating time evolution of states on intermediate time scales in the strong-coupling limit of the spin-1/2 XXZ model. To leading order, it describes an integrable model with local interactions. We solve it completely by means of a coordinate Bethe Ansatz that manifestly breaks the translational symmetry. We demonstrate the existence of exponentially many jammed states and estimate their stability under the leading correction to the effective Hamiltonian. Some ground state properties of the model are discussed.
ISSN:2666-9366
2542-4653
2666-9366
2542-4653
DOI:10.21468/SciPostPhysCore.4.2.010