Dr Sohan Costa
Department of Physics
Home
Appoinments
Awards & Grants
Research
Publication
Gallery
Abstract
Publication Types:
All types ( 13 )
1D lattice ( 2 )
2D lattice ( 9 )
Abstract ( 6 )
Codebase ( 1 )
DQMC ( 13 )
Holstein model ( 4 )
Hubbard model ( 5 )
Journal ( 6 )
ML ( 1 )
Pre-print ( 1 )
SSH model ( 13 )
Semi-Metal to Valence-Bond-Solid Phase Transition in the Honeycomb Lattice Using Machine Learning Techniques
2D lattice
Abstract
DQMC
ML
SSH model
Sohan Sanjay Malkaruge Costa, George Issa, Philip M Dee, Benjamin Cohen-Stead, Ehsan Khatami, Richard T Scalettar, Steven S Johnston
Publication year: 2026
Antiferromagnetic and Kekulé Valence Bond Solid Correlations in the Optical Su-Schrieffer-Heeger-Hubbard Model on a Honeycomb Lattice
2D lattice
Abstract
DQMC
Hubbard model
SSH 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 lattice
Abstract
DQMC
Hubbard model
SSH model
Sohan Sanjay Malkaruge Costa, Benjamin Cohen-Stead, Steven S Johnston
Publication year: 2025
Optical Su-Schrieffer-Heeger model in Honeycomb Lattice using DQMC
2D lattice
Abstract
DQMC
SSH model
Sohan Sanjay Malkaruge Costa, Benjamin Cohen-Stead, Steven S Johnston
Publication year: 2024
On the equivalence of the bond and optical SSH models in the adiabatic limit
1D lattice
Abstract
DQMC
SSH model
Sohan Sanjay Malkaruge Costa, Andy Tanjaroon Ly, Benjamin Cohen-Stead, Steven S Johnston
Publication year: 2023
Comparative Quantum Monte Carlo studies of the two-dimensional bond Su-Schrieffer-Heeger and Holstein models
2D lattice
Abstract
DQMC
Holstein model
SSH model
Andy Tanjaroon Ly, Sohan Sanjay Malkaruge Costa, Steven S Johnston, Benjamin Cohen-Stead, Philip M Dee, Richard T Scalettar
Publication year: 2023
