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publications

Spontaneous rotating vortex rings in a parametrically driven polariton fluid

Published in Europhysics Letters, 2015

This paper is about the spontaneous formation of rotating vortex rings in a pumped nonequilibrium superfluid of polaritons.

Recommended citation: James Hamp, A. K. Balin, F. M. Marchetti, D. Sanvitto, and M. H. Szymanska EPL 110 57006 (2015) https://iopscience.iop.org/article/10.1209/0295-5075/110/57006/meta

Emergent Coulombic criticality and Kibble-Zurek scaling in a topological magnet

Published in Physical Review B, 2015

This paper is about the nonequilibrium dynamics near the critical point of dipolar spin ice in a magnetic field.

Recommended citation: James Hamp, Anushya Chandran, Roderich Moessner, and Claudio Castelnovo Phys. Rev. B 92 075142 (2015) https://doi.org/10.1103/PhysRevB.92.075142

Emergent order in the kagome Ising magnet Dy₃Mg₂Sb₃O₁₄

Published in Nature Communications, 2016

This paper is about the experimental discovery of emergent charge ordering in a frustrated magnetic material, supported by theoretical calculations.

Recommended citation: J. A. M. Paddison, H. S. Ong, James Hamp, P. Mukherjee, X. Bai, M. G. Tucker, N. P. Butch, C. Castelnovo, M. Mourigal, and S. E. Dutton Nature Communications 7 13842 (2016) https://doi.org/10.1038/ncomms13842

Supercooling and fragile glassiness in a dipolar kagome Ising magnet

Published in Physical Review B, 2018

This paper is about the glassy freezing and supercooling that occurs in a simple disorder-free model of a classical frustrated magnet on the kagome lattice.

Recommended citation: James Hamp, Roderich Moessner, and Claudio Castelnovo Phys. Rev. B 98 144439 (2018) https://doi.org/10.1103/PhysRevB.98.144439

Automated regime detection in multidimensional time series data using sliced Wasserstein k-means clustering

Published in SSRN, ArXiv, 2023

This paper is about clustering regimes in time series using a variation of the k-means algorithm adapted to empirical distributions via the Wasserstein metric.

Recommended citation: Qinmeng Luan and James Hamp, Available at SSRN 4587877 (2023) https://papers.ssrn.com/sol3/papers.cfm?abstract_id=4587877

research

Optimal transport and analysis of time series data

Analysis of time series data using techniques from optimal transport including classification of regimes in financial time series data using the Wasserstein metric.

Behaviour of complex systems in and out of equilibrium

Investigation of behaviour of complex systems in and out of equilibrium, including phase transitions in spin systems.

teaching

Teaching experience 1

Undergraduate course, University 1, Department, 2014

This is a description of a teaching experience. You can use markdown like any other post.

Teaching experience 2

Workshop, University 1, Department, 2015