Thermalization of a Trapped One-Dimensional Bose Gas via Diffusion
Thermalization of a Trapped One-Dimensional Bose Gas via Diffusion
For a decade the fate of a one-dimensional gas of interacting bosons in an external trapping potential remained mysterious. We here show that whenever the underlying integrability of the gas is broken by the presence of the external potential, the inevitable diffusive rearrangements between the quasiparticles, quantified by the diffusion …