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Analytic Form of a Two-Dimensional Critical Distribution
Steven T. Bramwell
This paper explores the possibility of establishing an analytic form of the distribution of the order parameter fluctuations in a two-dimensional critical spin wave model, or width…
Tunable critical correlations in kagome ice
A. A. Turrini, A. Harman-Clarke, T. Fennell +4
We present a comprehensive experimental and theoretical study of the kagome ice Coulomb phase, that explores the fine tuning of critical correlations by applied field, temperature…
Experimental Measures of Topological Sector Fluctuations in the F-Model
Daan M. Arroo, Steven T. Bramwell
The two dimensional F-model is an ice-rule obeying model, with a low temperature antiferroelectric state and high temperature critical Coulomb phase. Polarization in the system is…
Electric field fluctuations in the two-dimensional Coulomb fluid
Callum Gray, Steven T. Bramwell, Peter C. W. Holdsworth
The structure factor for electric field correlations in the two dimensional Coulomb fluid is simulated and compared to theories of the dielectric function. Singular changes in the…
An electric-field representation of the harmonic XY model
Michael F. Faulkner, Steven T. Bramwell, Peter C. W. Holdsworth
The two-dimensional harmonic XY (HXY) model is a spin model in which the classical spins interact via a piecewise parabolic potential. We argue that the HXY model should be regarde…
Phase order in superfluid helium films
Steven T. Bramwell, Michael F. Faulkner, Peter C. W. Holdsworth +1
Classic experimental data on helium films are transformed to estimate a finite-size phase order parameter that measures the thermal degradation of the condensate fraction in the tw…