## Video URL

https://pirsa.org/23020050# Phase diagrams of spin-S Kitaev ladders

### APA

Chen, Y. (2023). Phase diagrams of spin-S Kitaev ladders. Perimeter Institute for Theoretical Physics. https://pirsa.org/23020050

### MLA

Chen, Yushao. Phase diagrams of spin-S Kitaev ladders. Perimeter Institute for Theoretical Physics, Feb. 13, 2023, https://pirsa.org/23020050

### BibTex

@misc{ scivideos_PIRSA:23020050, doi = {10.48660/23020050}, url = {https://pirsa.org/23020050}, author = {Chen, Yushao}, keywords = {Other Physics}, language = {en}, title = {Phase diagrams of spin-S Kitaev ladders}, publisher = {Perimeter Institute for Theoretical Physics}, year = {2023}, month = {feb}, note = {PIRSA:23020050 see, \url{https://scivideos.org/pirsa/23020050}} }

Yushao Chen Perimeter Institute for Theoretical Physics

**Source Repository**PIRSA

**Talk Type**Scientific Series

**Subject**

## Abstract

We investigate the ground states of spin-S Kitaev ladders using exact analytical solutions (for S=1/2), perturbation theory, and the density matrix renormalization group (DMRG) method. We find an even-odd effect: in the case of half-integer S, we find phases with spontaneous symmetry breaking (SSB) and symmetry-protected topological (SPT) order; for integer S, we find SSB and trivial paramagnetic phases. We also study the transitions between the various phases; notably, for half-integer S we find a transition between two distinct SPT orders, and for integer S we find unnecessary first order phase transitions within a trivial phase

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