Continuous-time crystal from a spontaneous many-body Floquet state
Continuous-time crystal from a spontaneous many-body Floquet state
We propose the concept of a spontaneous many-body Floquet state. This is a state that, in the absence of external periodic driving, self-oscillates like in the presence of a periodic Hamiltonian, this behavior being spontaneously induced by many-body interactions. In addition, its quantum fluctuations are described by regular Floquet theory. …