4.6k citations
Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
- University College LondonGB816 papers
- Thomas Young CentreGB105 papers
- University of CambridgeGB94 papers
- University of OxfordGB89 papers
- Rutherford Appleton LaboratoryGB87 papers
- Paul Scherrer InstituteCH81 papers
- Centre National de la Recherche ScientifiqueFR78 papers
- Imperial College LondonGB59 papers
- École Polytechnique Fédérale de LausanneCH57 papers
- Brookhaven National LaboratoryUS52 papers
- University of GenevaCH52 papers
- ETH ZurichCH48 papers
26 papers · 1 filter
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…
Stochastic entropy production in diffusive systems
Richard J Martin, Ian J Ford
Computing the stochastic entropy production associated with the evolution of a stochastic dynamical system is a well-established problem. In a small number of cases such as the Orn…
Nonthermal states arising from confinement in one and two dimensions
Andrew J. A. James, Robert M. Konik, Neil J. Robinson
We show that confinement in the quantum Ising model leads to nonthermal eigenstates, in both continuum and lattice theories, in both one (1D) and two dimensions (2D). In the ordere…
Maxwell's demon and the management of ignorance in stochastic thermodynamics
Ian J. Ford
It is nearly 150 years since Maxwell challenged the validity of the second law of thermodynamics by imagining a tiny creature who could sort the molecules of a gas in such a way th…
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…
Maximum entropy principle for stationary states underpinned by stochastic thermodynamics
Ian J. Ford
The selection of an equilibrium state by maximising the entropy of a system, subject to certain constraints, is often powerfully motivated as an exercise in logical inference, a pr…
Quantum quenches in two spatial dimensions using chain array matrix product states
A. J. A. James, R. M. Konik
We describe a method for simulating the real time evolution of extended quantum systems in two dimensions. The method combines the benefits of integrability and matrix product stat…
Topological-sector fluctuations and ergodicity breaking at the Berezinskii-Kosterlitz-Thouless transition
Michael F. Faulkner, Steven T. Bramwell, Peter C. W. Holdsworth
The Berezinskii-Kosterlitz-Thouless (BKT) phase transition drives the unbinding of topological defects in many two-dimensional systems. In the two-dimensional Coulomb gas, it corre…
Free energies of molecular clusters determined by guided mechanical disassembly
Hoi Yu Tang, Ian J. Ford
The excess free energy of a molecular cluster is a key quantity in models of the nucleation of droplets from a metastable vapour phase; it is often viewed as the free energy arisin…
AC Wien effect in spin ice, manifest in non-linear non-equilibrium susceptibility
Vojtěch Kaiser, Steven T. Bramwell, Peter C. W. Holdsworth +1
We predict the non-linear non-equilibrium response of a "magnetolyte", the Coulomb fluid of magnetic monopoles in spin ice. This involves an increase of the monopole density due to…
The Microscopic Features of Heterogeneous Ice Nucleation May Affect the Macroscopic Morphology of Atmospheric Ice Crystals
Stephen J. Cox, Zamaan Raza, Shawn M. Kathmann +2
It is surprisingly difficult to freeze water. Almost all ice that forms under "mild" conditions (temperatures > -40 degrees Celsius) requires the presence of a nucleating agent - a…
Symmetries of cyclic work distributions for an isolated harmonic oscillator
Ian J. Ford, David S. Minor, Simon J. Binnie
We have calculated the distribution of work done on a 1-d harmonic oscillator that is initially in canonical equilibrium at temperature , then thermally isolated and driven…
Topological Sector Fluctuations and Curie Law Crossover in Spin Ice
Ludovic D. C. Jaubert, Mark J. Harris, Tom Fennell +3
At low temperatures, a spin ice enters a Coulomb phase - a state with algebraic correlations and topologically constrained spin configurations. In Ho2Ti2O7, we have observed experi…
Entropy production from stochastic dynamics in discrete full phase space
Ian J. Ford, Richard E. Spinney
The stochastic entropy generated during the evolution of a system interacting with an environment may be separated into three components, but only two of these have a non-negative…
Entropy production in full phase space for continuous stochastic dynamics
Richard E. Spinney, Ian J. Ford
The total entropy production and its three constituent components are described both as fluctuating trajectory-dependent quantities and as averaged contributions in the context of…
Non-equilibrium thermodynamics of stochastic systems with odd and even variables
Richard E. Spinney, Ian J. Ford
The total entropy production of stochastic systems can be divided into three quantities. The first corresponds to the excess heat, whilst the second two comprise the house-keeping…
Fluctuation relations: a pedagogical overview
Richard E. Spinney, Ian J. Ford
The fluctuation relations have received considerable attention since their emergence and development in the 1990s. We present a summary of the main results and suggest ways to inte…
The kinetics of homogeneous melting beyond the limit of superheating
D. Alfè, C. Cazorla, M. J. Gillan
Molecular dynamics simulation is used to study the time-scales involved in the homogeneous melting of a superheated crystal. The interaction model used is an embedded-atom model fo…
Quantum phase transitions in transverse field spin models: from statistical physics to quantum information
Amit Dutta, Gabriel Aeppli, Bikas K. Chakrabarti +3
We review quantum phase transitions of spin systems in transverse magnetic fields taking the examples of the spin-1/2 Ising and XY models in a transverse field. Beginning with an o…
Contribution of spin pairs to the magnetic response in a dilute dipolar ferromagnet
C. M. S. Gannarelli, D. M. Silevitch, T. F. Rosenbaum +2
We simulate the dc magnetic response of the diluted dipolar-coupled Ising magnet LiHo\(_{0.045}\)Y\(_{0.955}\)F\(_4\) in a transverse field, using exact diagonalization of a two-sp…
Universal Window for Two Dimensional Critical Exponents
Andrea Taroni, Steven T. Bramwell, Peter C. W. Holdsworth
Two dimensional condensed matter is realised in increasingly diverse forms that are accessible to experiment and of potential technological value. The properties of these systems a…