Pre-thermal Time Crystals and Floquet topological phases without disorder
Pre-thermal Time Crystals and Floquet topological phases without disorder
We show that both discrete and continuous time-translation symmetry can be broken in the pre-thermal regime of quantum systems that eventually thermalize. We prove a theorem that states that such crystals persist until times that are nearly exponentially-long in the couplings and, in driven systems, the drive frequency. After this …