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arXiv · 2009.04995

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

Lenart Zadnik·Maurizio Fagotti
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Abstract

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.

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Lenart Zadnik, Maurizio Fagotti. 2020-09-10. The Folded Spin-1/2 XXZ Model: I. Diagonalisation, Jamming, and Ground State Properties. https://doi.org/10.21468/scipostphyscore.4.2.010

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