Dr. Richard Blythe
 Position:

Reader
 Research Theme:
 Condensed Matter and Photonics
 Research Group:
 Soft Matter, Statistical Physics and Biophysics
 Institution:
 Edinburgh
 Email address:
 r.a.blythe@ed.ac.uk
 Website:
 http://www.ph.ed.ac.uk/~rblythe3
 Telephone number:
 +44 (0)131 650 5105
 Address:
 School of Physics and Astronomy, James Clerk Maxwell Building, Peter Guthrie Tait Road, Edinburgh, EH9 3FD, United Kingdom
Research interests
Dr Blythe's research concerns modelling and understanding complex farfromequilibrium systems. These systems abound at all scales, from cells through driven materials to evolving ecosystems and societies. As yet we lack a complete theory for predicting the emergent macroscopic consequences of the interactions between the constituents of these systems. Until this is achieved, such longterm goals as controlling materials driven by industrial processes, or forecasting the future behaviour of an ecosystem or a society will remain out of reach. As such, emergence and physics far from equilibrium has been recognised as a Physical Science Grand Challenge for the 21st Century.
Dr Blythe's research directly addresses this challenge in two ways. First, he investigates farfromequilibrium systems at a fundamental level by means of mathematical analyses of models to establish how basic properties of a system (e.g., symmetries, conservation laws and spatial heterogeneity) govern their macroscopic behaviour. Second, there are many opportunities to apply quantitative techniques from the physical sciences to test theories in other disciplines in new ways. A major part of his recent research has involved applications of modelling in the context of human linguistic behaviour at various levels of description. The nature of evolving linguistic systems – whereby patterns of behaviour at the level of societies emerge from a combination of human cognition and social interactions – makes them a natural fit to the paradigmatic approach of statistical physics that attempts to explain patterns in macroscopic systems with many constituents from knowledge of the interactions between component parts.
Dr Blythe was appointed to the University as a Lecturer in 2007 and promoted to Reader in 2014. His professional activities include being a Divisional Associate Editor of Physical Review Letters.
Teaching
At present, Dr Blythe is responsible for two undergraduate courses at the University of Edinburgh:
 Linear Algebra and Several Variable Calculus  PreHonours introductory mathematics for physics, covering vectors, matrices, partial differentiation and multiple integration in a physics context.
 MPhys Project  Final year research project for students on the MPhys integrated masters programmes in Physics, Astrophysics, Theoretical, Mathematical and Computational Physics.
Previously, he has taught
 Research Methods in Physics  Juniour Honours introduction to cuttingedge research in physics and a chance to develop research skills such as searching and understanding the scientific literature, writing scientifically, critiquing other scientists' work and giving presentations.
 Nonequilibrium Statistical Mechanics  Biennial postgraduate course on the application of relevant statistical physics methods to a variety of nonequilibrium systems. This course is taught as part of the SUPA Graduate School.
 Modelling and Visualisation in Physics  Senior Honours course in computational physics, covering key modelling and simulation methods (Monte Carlo, molecular dynamics, iterative methods for solving partial differential equations) and data visualisation and analysis techniques.
Dr Blythe has also taught at a number of graduate schools, nationally and internationally. These include:
 Statistical Mechanics course at UK National "Physics by the Lake" / "Physics by the Sea" Theory of Condensed Matter summer school (200810, 2012, 20145)
 Stochastic models of evolutionary dynamics at "Steps in Evolution" summer school, Jacobs University, Germany (2009).
 Modelling Language Change at Linguistics Society of America Summer Institute, University of Colorado, Boulder (2011).
 Equilibrium and Nonequilibrium Particle Number Fluctuations as part of MSc Masterclass in Modelling Complex Systems, Kings College London (2013).
Research outputs
 Minimal stochastic field equations for onedimensional flocking, Physical Review E (2018)
 Exact spectral solution of two interacting runandtumble particles on a ring lattice, Journal of Statistical Mechanics: Theory and Experiment (2018)
 Width Scaling of an Interface Constrained by a Membrane DOI, Physical Review Letters, 121 (2018)
 Renyi entropy of the totally asymmetric exclusion process DOI, Journal of Physics A: Mathematical and Theoretical, 50, 47 (2017)
 Exact Solution of Two Interacting RunandTumble Random Walkers with Finite Tumble Duration DOI, Journal of Physics A: Mathematical and Theoretical, 50 (2017)
 Assembly of Microbial Communities in Replicate NutrientCycling Model Ecosystems Follows Divergent Trajectories, Leading to Alternate Stable States DOI, Environmental Microbiology, 19, p. 33743386 (2017)
 Momentum in language change DOI, Language Dynamics and Change, 6, 2 , p. 171198 (2016)
 Executive functions predict conceptual learning of science DOI, British Journal of Developmental Psychology, 34, 2 (2016)
 Jamming and Attraction of Interacting RunandTumble Random Walkers DOI, Physical Review Letters, 116 (2016)
 Word learning under infinite uncertainty DOI, Cognition, 151, p. 1827 (2016)