Probing spinon interactions in the spin-1 bilinear-biquadratic chain
Yonatan Lin, Oleg A. Starykh, Anna Keselman
TL;DR
This paper investigates the interactions of spinons in a critical spin-1 chain, using analytical predictions and numerical simulations to understand how these interactions manifest under magnetic field and anisotropy.
Contribution
It provides a direct method to probe spinon interactions in the bilinear-biquadratic spin-1 chain through analytical and numerical approaches.
Findings
Spinon interactions can be directly probed via magnetic field or anisotropy.
Analytical predictions align with matrix-product-state simulations.
The study enhances understanding of deconfined spinons in critical phases.
Abstract
We study the dynamical spin and nematic correlations in the bilinear-biquadratic spin-1 chain in the critical phase hosting deconfined spinons. We demonstrate how spinon interactions can be directly probed in the presence of a magnetic field or a single-ion anisotropy. Our analytical predictions are supported by numerical matrix-product-state (MPS) simulations of the underlying microscopic model.
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