The antiferromagnetic phase of the Floquet-driven Hubbard model
Strongly Correlated Electrons
2019-09-25 v2
Abstract
A saddle point plus fluctuations analysis of the periodically driven half-filled two-dimensional Hubbard model is performed. For drive frequencies below the equilibrium gap, we find discontinuous transitions to time-dependent solutions. A highly excited, generically non-thermal distribution of magnons occurs even for drive frequencies far above the gap. Above a critical drive amplitude, the low-energy magnon distribution diverges as the frequency tends to zero and antiferromagnetism is destroyed, revealing the generic importance of collective mode excitations arising from a non-equilibrium drive.
Cite
@article{arxiv.1809.08607,
title = {The antiferromagnetic phase of the Floquet-driven Hubbard model},
author = {Nicklas Walldorf and Dante M. Kennes and Jens Paaske and Andrew J. Millis},
journal= {arXiv preprint arXiv:1809.08607},
year = {2019}
}