Possible many-body localization in a long-lived finite-temperature ultracold quasi-neutral molecular plasma
arXiv:1708.07200 · doi:10.1103/PhysRevLett.120.110601
Abstract
We argue that the quenched ultracold plasma presents an experimental platform for studying quantum many-body physics of disordered systems in the long-time and finite energy-density limits. We consider an experiment that quenches a plasma of nitric oxide to an ultracold system of Rydberg molecules, ions and electrons that exhibits a long-lived state of arrested relaxation. The qualitative features of this state fail to conform with classical models. Here, we develop a microscopic quantum description for the arrested phase based on an effective many-body spin Hamiltonian that includes both dipole-dipole and van der Waals interactions. This effective model appears to offer a way to envision the essential quantum disordered non-equilibrium physics of this system.
6 pages main text + 9 pages supplemental materials, 2 figures main text + 7 figures and 2 tables supplemental materials
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