2021 CAP Virtual Congress / Congrès virtuel de l'ACP 2021

POS-F56 -- Solitons of the higher spin Haldane spin chain

9 Jun 2021, 14:15

2m

Underline Conference System

Poster not-in-competition (Graduate Student) / Affiche non-compétitive (Étudiant(e) du 2e ou 3e cycle) Condensed Matter and Materials Physics / Physique de la matière condensée et matériaux (DCMMP-DPMCM) W-POS-F #41-56 Poster session (DCMMP) / Session d'affiches (DPMCM)

Speaker

Christian Boudreault (Royal Military College Saint-Jean/U de Montréal)

Description

We consider the antiferromagnetic anisotropic Haldane model with large spins, in a region where a perturbative treatment is indicated. The Néel order is frustrated by periodic boundary conditions imposed on an odd-numbered chain, resulting in a highly degenerate groundspace spanned by solitons. We study the pertrubative groundstate entropy of entanglement for different scenarios, and compare with recent results.