Dr George W. Stagg

Teaching and Research Technical Officer
School of Mathematics, Statistics & Physics—Newcastle University.



Doctor of Philosophy - Mathematics

Newcastle University

Thesis: A Numerical Study of Vortices and Turbulence in Quantum Fluids

Supervisors: Prof. Carlo Barenghi & Dr. Nick Parker

September 2012 - June 2016

Master of Mathematics

Newcastle University

First Class Honours

Masters Project: The Movement of a Fractal Through a Bose-Einstein Condensate

Supervisor: Prof. Carlo Barenghi

August 2002 - May 2006



MAS2502: Introduction to Computing and Problem Solving

School of Mathematics, Statistics & Physics—Newcastle University
Semester 1, 2018–2020

Training Sessions

Mathematical Typesetting with LaTeX

Newcastle University
October 2016–2019

R & Matlab Refresher Sessions

Newcastle University
October 2016–2019

Introduction to GNU/Linux

Newcastle University
November & January 2018–2020



Low temperature physics
  • Bose-Einstein condensation
  • Superfluid vortex dynamics
  • Two-dimensional vortex dynamics
  • Ultra-quantum turbulece decay
  • BEC with dipolar-dipolar interactions
Joint work with Durham NODES
  • Notions of discrete graph curvature
  • The Graph Curvature Calculator
Research Software Engineering
  • Parallel MPI/OpenMP research codes
  • HPC cluster administration
  • GNU/Linux systems administration
  • Configuration management with Puppet & Hiera


The Graph Curvature Calculator and the curvatures of cubic graphs
D. Cushing, R. Kangaslampi, V. Lipiäinen, S. Liu, G. W. Stagg, Experimental Mathematics
Quasiperiodic boundary conditions for three-dimensional superfluids
Toby S. Wood, Mae Mesgarnezhad, George W. Stagg, Carlo F. Barenghi, Phys. Rev. B 100, 024505
Quantum ferrofluid turbulence
T. Bland, G. W. Stagg, L. Galantucci, A. W. Baggaley, N. G. Parker, Phys. Rev. Lett. 121, 174501
Vortex scattering by impurities in a Bose-Einstein condensate
A. Griffin, G. W. Stagg, N. P. Proukakis and C. F. Barenghi, J. Phys. B: At. Mol. Opt. Phys. 50, 115003
Superfluid boundary layer
G. W. Stagg, N. G. Parker, C. F. Barenghi, Phys. Rev. Lett. 118, 0135301
Ultraquantum turbulence in a quenched homogeneous Bose gas
G. W. Stagg, N. G. Parker, and C. F. Barenghi, Phys. Rev. A 94, 053632
Critical velocity for vortex nucleation in a finite-temperature Bose gas
G. W. Stagg, R. W. Pattinson, C. F. Barenghi, N. G. Parker, Phys. Rev. A 93, 023640
Generation and Decay of Two-Dimensional Quantum Turbulence in a Trapped Bose-Einstein Condensate
G. W. Stagg, A. J. Allen, N. G. Parker, and C. F. Barenghi, Phys. Rev. A 91, 013612
Quantum analogues of classical wakes in Bose-Einstein condensates
G. W. Stagg, N. G. Parker and C. F. Barenghi, J Phys B: At. Mol. Opt. Phys. 47, 095304


Academic Projects

2D-GP Image

A Fortran project that numerically solves the Gross-Pitaevskii Equation in 2D using OpenMP.

Card image cap

A Fortran project that numerically solves the Gross-Pitaevskii Equation in 3D using MPI and OpenMP.

Graph Curvature Calculator showing a graph
Graph Curvature Calculator

A web tool for calculating curvature of graphs under various discrete curvature notions.

Personal Projects

Mathematical & Physical Demos

Double Spherical Pendulum
Double Spherical Pendulum

Classical physics simulation of a double pendulum with spherical joints and masses otherwise free to move in 3D.

WebGL GPE image

A WebGL implementation of a 2D Gross-Pitaevskii Equation numerical solver. The solver runs in real time and is directly interactive.

Hyperbolic Fractal image
Hyperbolic Fractals

Defining the Mandelbrot set on a Poincare disc. Includes an interactive hyperbolic fractal explorer.


Double Torus Snake image
Double Torus Snake

Snake, but played on a double torus. An experiment in working with Enscripten.

Tensor Tic Tac Toe image
Tensor Tic Tac Toe

A meta-game based on Tic Tac Toe. The meta-game is made up of 9 smaller games of Tic Tac Toe.

Primes! image

Tap the tiles to pop out the lowest prime factor. Adjacent primes disappear! Try to clear the board.


Waveflow for iOS image
WaveFlow for iOS

A runtime modification (also known as a ‘tweak’) for jailbroken iOS (9-11) devices that adds a graphical visualiser to the lockscreen and Music app.