SSH model

Publication Types:

The optical Su-Schrieffer-Heeger model on a triangular lattice

2D latticeDQMCJournalPre-printSSH model
Max Casebolt, Sohan Malkaruge Costa, Benjamin Cohen-Stead, Richard Scalettar, Steven Johnston
arXiv:2604.04123
Publication year: 2026

Semi-Metal to Valence-Bond-Solid Phase Transition in the Honeycomb Lattice Using Machine Learning Techniques

2D latticeAbstractDQMCMLSSH model
Sohan Sanjay Malkaruge Costa, George Issa, Philip M Dee, Benjamin Cohen-Stead, Ehsan Khatami, Richard T Scalettar, Steven S Johnston
Publication year: 2026

Codebase release r2. 0 for SmoQyDQMC. jl

CodebaseDQMCHolstein modelHubbard modelSSH model
Benjamin Cohen-Stead, Shruti Agarwal, Sohan Malkaruge Costa, James Neuhaus, Andy Tanjaroon Ly, Yutan Zhang, Richard Scalettar, Kipton Barros, Steven Johnston
SciPost Phys. Codebases 29-r2.0 (2026) · published 9 June 2026
Publication year: 2026

Antiferromagnetism and Kekulé valence bond order in the honeycomb optical Su-Schrieffer-Heeger-Hubbard model

2D latticeDQMCHubbard modelJournalSSH model
Sohan Malkaruge Costa , Benjamin Cohen-Stead , and Steven Johnston
hys. Rev. B 113, 115138 – Published 18 March, 2026
Publication year: 2026

Antiferromagnetic and Kekulé Valence Bond Solid Correlations in the Optical Su-Schrieffer-Heeger-Hubbard Model on a Honeycomb Lattice

2D latticeAbstractDQMCHubbard modelSSH model
Benjamin Cohen-Stead, Sohan Sanjay Malkaruge Costa, Steven S Johnston
Publication year: 2026

DQMC study of competing phases of the Hubbard-optical SSH model on the honeycomb lattice

2D latticeAbstractDQMCHubbard modelSSH model
Sohan Sanjay Malkaruge Costa, Benjamin Cohen-Stead, Steven S Johnston
Publication year: 2025

SmoQyDQMC.jl: A flexible implementation of determinant quantum Monte Carlo for Hubbard and electron-phonon interactions

DQMCHolstein modelHubbard modelJournalSSH model
Benjamin Cohen-Stead, Sohan Malkaruge Costa, James Neuhaus, Andy Tanjaroon Ly, Yutan Zhang, Richard Scalettar, Kipton Barros, Steven Johnston
SciPost Phys. Codebases 29 (2024) · published 28 May 2024
Publication year: 2024

Optical Su-Schrieffer-Heeger model in Honeycomb Lattice using DQMC

2D latticeAbstractDQMCSSH model
Sohan Sanjay Malkaruge Costa, Benjamin Cohen-Stead, Steven S Johnston
Publication year: 2024

Kekulé valence bond order in the honeycomb lattice optical Su-Schrieffer-Heeger model and its relevance to graphene

2D latticeDQMCJournalSSH model
Sohan Malkaruge Costa, Benjamin Cohen-Stead, Steven Johnston
Phys. Rev. B 110, 115130 – Published 16 September, 2024
Publication year: 2024

On the equivalence of the bond and optical SSH models in the adiabatic limit

1D latticeAbstractDQMCSSH model
Sohan Sanjay Malkaruge Costa, Andy Tanjaroon Ly, Benjamin Cohen-Stead, Steven S Johnston
Publication year: 2023

Comparative study of the superconductivity in the Holstein and optical Su-Schrieffer-Heeger models

2D latticeDQMCHolstein modelJournalSSH model
Andy Tanjaroon Ly , Benjamin Cohen-Stead , Sohan Malkaruge Costa , and Steven Johnston
Phys. Rev. B 108, 184501 – Published 1 November, 2023
Publication year: 2023

Comparative Quantum Monte Carlo studies of the two-dimensional bond Su-Schrieffer-Heeger and Holstein models

2D latticeAbstractDQMCHolstein modelSSH model
Andy Tanjaroon Ly, Sohan Sanjay Malkaruge Costa, Steven S Johnston, Benjamin Cohen-Stead, Philip M Dee, Richard T Scalettar
Publication year: 2023

Comparative determinant quantum Monte Carlo study of the acoustic and optical variants of the Su-Schrieffer-Heeger model

1D latticeDQMCJournalSSH model
Sohan Malkaruge Costa, Benjamin Cohen-Stead, Andy Tanjaroon Ly, James Neuhaus, Steven Johnston
Phys. Rev. B 108, 165138 – Published 19 October, 2023
Publication year: 2023