56 citations · 154 across the 10 of their papers we have counts for
10 papers
Learning by Confusion: The Phase Diagram of the Holstein Model
George Issa, Owen Bradley, Ehsan Khatami +1
We employ the "learning by confusion" technique, an unsupervised machine learning approach for detecting phase transitions, to analyze quantum Monte Carlo simulations of the two-di…
Exploring freeze out and flow using exact solutions of conformal hydrodynamics
Owen Bradley, Christopher Plumberg
Exact solutions to the equations of hydrodynamics provide valuable benchmark tests for numerical hydrodynamic codes and also provide useful insights into the nature of hydrodynamic…
High-temperature magnetization and entropy of the triangular lattice Hubbard model in a Zeeman field
Owen Bradley, Yutan Zhang, Jaan Oitmaa +1
We use strong coupling expansions to calculate the entropy function , the magnetization , and the double occupancy factor for the half-filled triangular la…
Charge order in the kagome lattice Holstein model: A hybrid Monte Carlo study
Owen Bradley, Benjamin Cohen-Stead, Steven Johnston +2
The Holstein model is a paradigmatic description of the electron-phonon interaction, in which electrons couple to local dispersionless phonon modes, independent of momentum. The mo…
Fast and scalable quantum Monte Carlo simulations of electron-phonon models
Benjamin Cohen-Stead, Owen Bradley, Cole Miles +3
We introduce methodologies for highly scalable quantum Monte Carlo simulations of electron-phonon models, and report benchmark results for the Holstein model on the square lattice.…
Dynamical tuning of the chemical potential to achieve a target particle number in grand canonical Monte Carlo simulations
Cole Miles, Benjamin Cohen-Stead, Owen Bradley +3
We present a method to facilitate Monte Carlo simulations in the grand canonical ensemble given a target mean particle number. The method imposes a fictitious dynamics on the chemi…
Instabilities of spin-1 Kitaev spin liquid phase in presence of single-ion anisotropies
Owen Bradley, Rajiv R. P. Singh
We study the spin-one Kitaev model on the honeycomb lattice in the presence of single-ion anisotropies. We consider two types of single ion anisotropies: A anisotropy whi…
Superconductivity and charge density wave order in the 2D Holstein model
Owen Bradley, George G. Batrouni, Richard T. Scalettar
The Holstein Hamiltonian describes fermions hopping on a lattice and interacting locally with dispersionless phonon degrees of freedom. In the low density limit, dressed quasiparti…
Thermodynamic behavior of modified integer-spin Kitaev models on the honeycomb lattice
Owen Bradley, Jaan Oitmaa, Diptiman Sen +1
We study the thermodynamic properties of modified spin- Kitaev models introduced by Baskaran, Sen and Shankar (Phys. Rev. B 78, 115116 (2008)). These models have the property th…
Robustness of entropy plateaus: A case study of triangular Ising antiferromagnets
Owen Bradley, Chunhan Feng, Richard T. Scalettar +1
Residual entropy is a key feature associated with emergence in many-body systems. From a variety of frustrated magnets to the onset of spin-charge separation in Hubbard models and…