Fluctuation engineering in cavity quantum materials
Mesoscale and Nanoscale Physics
2026-04-13 v1 Strongly Correlated Electrons
Quantum Physics
Abstract
Coupling tailored electromagnetic fluctuations to materials provides a resource for controlling correlated quantum matter. By structuring the frequency, spatial, and modal distribution of fluctuations through a new generation of cavity quantum materials, vacuum and thermal spectra can shift phase boundaries and stabilize or suppress orders. This review organizes the field around a fluctuation-focused perspective, surveying a practical design toolbox and recent milestones, and outlining theory-experiment challenges in realistic, multimode, beyond-long-wavelength regimes. We highlight photonic observables and map opportunities for equilibrium and driven control across superconducting, magnetic, moire, and topological platforms.
Cite
@article{arxiv.2604.08666,
title = {Fluctuation engineering in cavity quantum materials},
author = {Hope M Bretscher and Lorenzo Graziotto and Marios H Michael and Angela Montanaro and I-Te Lu and Andrey Grankin and James W McIver and Jerome Faist and Daniele Fausti and Martin Eckstein and Michael Ruggenthaler and Angel Rubio and DN Basov and Mohammad Hafezi and Martin Claassen and Dante M Kennes and Michael A Sentef},
journal= {arXiv preprint arXiv:2604.08666},
year = {2026}
}