Metallic hydrogen and hydride materials stand as promising avenues to achieve room-temperature superconductivity. Characterized by their high phonon frequencies and moderate coupling strengths, several high-pressure hydrides were theoretically predicted to exhibit transition temperatures (Tc) exceeding 250\,K, a claim further substantiated by experimental evidence. In an effort to push Tc beyond room temperature, we introduce a dynamical method that involves stimulating hydrides with mid-infrared lasers. Employing Floquet first-principles simulations, we observe that in a nonequilibrium state induced by light, both the electronic density of states and the coupling to high-energy phonons see notable enhancements. These simultaneous improvements collectively result in an estimated 20\%-30\% rise in Tc in practical pump conditions. Our theoretical investigation, therefore, offers a novel strategy to potentially raise the Tc of hydrides above room temperature.
@article{arxiv.2312.12706,
title = {Dynamical Approach to Realize Room-Temperature Superconductivity in LaH$_{10}$},
author = {Chendi Xie and Adam D. Smith and Haoran Yan and Wei-Chih Chen and Yao Wang},
journal= {arXiv preprint arXiv:2312.12706},
year = {2025}
}