Synthetic gauge fields

1. 2026 Single-Shot Realization of 10,000-Mode Octave-Spanning Artificial Gauge Fields A hundred ring resonators, wired so that light going round one loop of the array picks up a phase, make a magnetic field that is not there. Each ring holds hundreds of colours, and every colour sees a slightly different field — which the usual theory assumes away. Correct for it and a single pulse lights ten thousand modes at once, across nearly an octave, with the topology intact.
2. 2025 Zero-Flux Localization: Magic Flat Bands via Non-Abelian Gauge Fields A magnetic field that cancels out cannot trap an electron. A spin field carrying no flux of its own can — and only when the flux through one magnetic tile is a whole number of flux quanta.
3. 2025 Quantum Metamorphosis: Programmable Emergence and the Breakdown of Bulk–Edge Dichotomy in Multiscale Systems Put a whole lattice at every site of a lattice, and one dial — the ratio of the two hopping rates — carries the spectrum from one to the other. On the way across, the system is neither: bands cross and flatten, a state can be edge-like at one scale and bulk-like at the other, and the topology depends on how far away you stand.

Joined on the board to Geometry & gravity.
Every publication, with the ones that have no page here, is on the CV.