Portrait of Alex Gower

Alex Gower

PhD Student, Nokia Bell Labs & University of Cambridge

About

I work on the physics of machine learning: training algorithms that let physical systems learn by settling, rather than by backpropagation. My PhD, joint between the Math & Algorithms Group at Nokia Bell Labs and the Theoretical Condensed Matter Group at the University of Cambridge, centres on Equilibrium Propagation — from state-of-the-art EP training on analog Oscillator Ising Machines, now being implemented in hardware with Nokia and TU Eindhoven, to GradEP, which extends EP to train energy gradients and enabled the first EP-trained flow matching generative model (Best Paper, ICONS ‘26).

A second thread connects this to statistical physics: gradient descent on rugged energy landscapes, where we uncovered a saddles-to-minima topological crossover controlling glassy dynamics, using the Rubik’s Cube as a model system. Alongside the PhD, I lead machine learning work on violence risk forecasting at the Alan Turing Institute & UK Ministry of Justice.

News

Selected publications

  1. FlowEqProp: Training Flow Matching Generative Models with Gradient Equilibrium Propagation
    Alex Gower
    In Proceedings of the International Conference on Neuromorphic Systems (ICONS ’26), 2026
  2. Learning at the Speed of Physics: Equilibrium Propagation on Oscillator Ising Machines
    Alex Gower
    In NeurIPS 2025 Workshop on Machine Learning and the Physical Sciences (ML4PS), 2025
  3. How to Train an Oscillator Ising Machine using Equilibrium Propagation
    Alex Gower
    In Proceedings of the International Conference on Neuromorphic Systems (ICONS ’25), 2025

All publications →