title: Fluctuation-dissipation theorem in an isolated system of quantum dipolar bosons after a quench.
abstract: We examine the validity of fluctuation-dissipation relations in isolated quantum systems taken out of equilibrium by a sudden quench. We focus on the dynamics of trapped hard-core bosons in one-dimensional lattices with dipolar interactions whose strength is changed during the quench. We find indications that fluctuation-dissipation relations hold if the system is nonintegrable after the quench, as well as if it is integrable after the quench if the initial state is an equilibrium state of a nonintegrable Hamiltonian. On the other hand, we find indications that they fail if the system is integrable both before and after quenching.
authors: Department of Physics, University of California, Santa Cruz, California 95064, USA.
authors: Ehsan
authors: E
authors: Khatami
authors: Guido
authors: G
authors: Pupillo
authors: Mark
authors: M
authors: Srednicki
authors: Marcos
authors: M
authors: Rigol