Spin-triplet superconductivity is a key platform for topological quantum computing, yet its experimental realization and control in solid-state materials remain a significant challenge. For this purpose, we propose an ultrafast optical strategy to manipulate spin-triplet superconductivity by leveraging p-wave pairing instabilities in the extended Hubbard model, a framework applicable to transition-metal oxides. Utilizing Floquet engineering, we demonstrate that transient flipping of the effective spin-exchange interaction can enhance p-wave pairing correlations under linearly polarized optical pulses. Furthermore, we reveal that this emergent spin-triplet pairing in strongly correlated systems can be selectively switched by an orthogonal optical pulse. This work provides a pathway for stabilizing and controlling spin-triplet superconductivity in correlated materials.
@article{arxiv.2503.02294,
title = {Light Control of Triplet Pairing in Correlated Electrons with Mixed-Sign Interactions},
author = {Zecheng Shen and Chendi Xie and Wei-Chih Chen and Yao Wang},
journal= {arXiv preprint arXiv:2503.02294},
year = {2025}
}