Nonequilibrium dynamics of one-dimensional hard-core anyons following a quench: Complete relaxation of one-body observables

Understand

We demonstrate the role of interactions in driving the relaxation of an isolated integrable quantum system following a sudden quench.

• We consider a family of integrable hard-core lattice anyon models that continuously interpolates between noninteracting spinless fermions and strongly interacting hard-core bosons.
• A generalized Jordan-Wigner transformation maps the entire family to noninteracting fermions.
• We find that, aside from the singular free-fermion limit, the entire single-particle density matrix and therefore all one-body observables relax to the predictions of the generalized Gibbs ensemble (GGE).