Outputs (14)

Emergence of cooperative dynamics in fully packed classical dimers (2016)
Journal Article
Oakes, T., Garrahan, J. P., & Powell, S. (2016). Emergence of cooperative dynamics in fully packed classical dimers. Physical Review E, 93(3), Article 032129. https://doi.org/10.1103/PhysRevE.93.032129

We study the behavior of classical dimer coverings of the square lattice—a paradigmatic model for systems subject to constraints—evolving under local stochastic dynamics, by means of Monte Carlo simulations and theoretical arguments. We observe clear... Read More about Emergence of cooperative dynamics in fully packed classical dimers.

Scaling dimensions of higher-charge monopoles at deconfined critical points (2015)
Journal Article
Sreejith, G., & Powell, S. (2015). Scaling dimensions of higher-charge monopoles at deconfined critical points. Physical Review B, 92(18), Article 184413. https://doi.org/10.1103/PhysRevB.92.184413

The classical cubic dimer model has a columnar ordering transition that is continuous and described by a critical Anderson–Higgs theory containing an SU(2)-symmetric complex field minimally coupled to a noncompact U(1) gauge theory. Defects in the di... Read More about Scaling dimensions of higher-charge monopoles at deconfined critical points.

Ferromagnetic Coulomb phase in classical spin ice (2015)
Journal Article
Powell, S. (2015). Ferromagnetic Coulomb phase in classical spin ice. Physical Review B, 91(9), Article 094431. https://doi.org/10.1103/PhysRevB.91.094431

Spin ice is a frustrated magnetic system that at low temperatures exhibits a Coulomb phase, a classical spin liquid with topological order and deconfined excitations. This work establishes the presence of a Coulomb phase with coexisting ferromagnetic... Read More about Ferromagnetic Coulomb phase in classical spin ice.

Critical behavior in the cubic dimer model at nonzero monomer density (2014)
Journal Article
Sreejith, G., & Powell, S. (2014). Critical behavior in the cubic dimer model at nonzero monomer density. Physical Review B, 89(1), Article 014404. https://doi.org/10.1103/PhysRevB.89.014404

We study critical behavior in the classical cubic dimer model (CDM) in the presence of a finite density of monomers. With attractive interactions between parallel dimers, the monomer-free CDM exhibits an unconventional transition from a Coulomb phase... Read More about Critical behavior in the cubic dimer model at nonzero monomer density.