1 citations · 1 across the 3 of their papers we have counts for
5 papers
The optical Su-Schrieffer-Heeger model on a triangular lattice
Max Casebolt, Sohan Malkaruge Costa, Benjamin Cohen-Stead +2
We study the triangular lattice optical Su-Schrieffer-Heeger (SSH) model using determinant quantum Monte Carlo. By varying the model's carrier concentration, electron-phonon coupli…
Antiferromagnetism and Kekulé valence bond order in the honeycomb optical Su-Schrieffer-Heeger-Hubbard model
Sohan Malkaruge Costa, Benjamin Cohen-Stead, Steven Johnston
The precise role of e-ph coupling in graphene and related materials on a honeycomb lattice is not yet fully understood, despite extensive research on these systems. Here, we perfor…
Kekulé valence bond order in the honeycomb lattice optical Su-Schrieffer-Heeger Model and its relevance to Graphene
Sohan Malkaruge Costa, Benjamin Cohen-Stead, Steven Johnston
We perform sign-problem-free determinant quantum Monte Carlo simulations of the optical Su-Schrieffer-Heeger (SSH) model on a half-filled honeycomb lattice. In particular, we inves…
SmoQyDQMC.jl: A flexible implementation of determinant quantum Monte Carlo for Hubbard and electron-phonon interactions (version 2.0 release)
Benjamin Cohen-Stead, Shruti Agarwal, Sohan Malkaruge Costa +6
We introduce version 2.0 of the SmoQyDQMC.jl package, a Julia implementation of the determinant quantum Monte Carlo algorithm. SmoQyDQMC.jl supports generalized tight-binding Hamil…
A comparative determinant quantum Monte Carlo study of the acoustic and optical variants of the Su-Schrieffer-Heeger model
Sohan Malkaruge Costa, Benjamin Cohen-Stead, Andy Tanjaroon Ly +2
We compare the acoustic Su-Schrieffer-Heeger (SSH) model with two of its optical variants where the phonons are defined on either on the sites or bonds of the system. First, we dis…