@ARTICLE {33992,
author={M. G. Silveirinha and H. Terças and M.  Antezza},
doi={10.1103/PhysRevB.108.235154},
journal={Physical Review B},
title={Spontaneous breaking of time-reversal symmetry and time-crystal states in chiral atomic systems},
year={2023},
month={December},
volume={108},
number={23},
pages={1-20},
ISSN={2469-9950}
}