Symmetries and entanglement in the one-dimensional spin-1/2 XXZ model
Mykhailo V. Rakov, Michael Weyrauch, Briiissuurs Braiorr-Orrs
TL;DR
This paper introduces a stable algorithm for U(1) symmetric matrix product states with periodic boundary conditions, applied to analyze correlation and entanglement in the spin-1/2 XXZ model, revealing detailed convergence and accuracy insights.
Contribution
It presents a novel, efficient algorithm for U(1) symmetric MPS with PBC, enabling detailed study of entanglement in the XXZ model.
Findings
Algorithm demonstrates high stability and efficiency.
Accurate characterization of eigenstate entanglement.
Insights into correlation properties of the XXZ model.
Abstract
An efficient and stable algorithm for U(1) symmetric matrix product states (MPS) with periodic boundary conditions (PBC) is proposed. It is applied to a study of correlation and entanglement properties of the eigenstates of the spin-1/2 XXZ model with different spin projections. Convergence properties and accuracy of the algorithm are studied in detail.
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