Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Many-body physics with ultracold plasmas: Quenched randomness and
  localization   The exploration of large-scale many-body phenomena in quantum materials has
produced many important experimental discoveries, including novel states of
entanglement, topology and quantum order as found for example in quantum spin
ices, topological insulators and semimetals, complex magnets, and high-$T_c$
superconductors. Yet, the sheer scale of solid-state systems and the difficulty
of exercising exacting control of their quantum mechanical degrees of freedom
limit the pace of rational progress in advancing the properties of these and
other materials. With extraordinary effort to counteract natural processes of
dissipation, precisely engineered ultracold quantum simulators could point the
way to exotic new materials. Here, we look instead to the quantum mechanical
character of the arrested state formed by a quenched ultracold molecular
plasma. This novel class of system arises spontaneously, without a deliberate
engineering of interactions, and evolves naturally from state-specified initial
conditions, to a long-lived final state of canonical density, in a process that
conflicts with classical notions of plasma dissipation and neutral
dissociation. We take information from experimental observations to develop a
conceptual argument that attempts to explain this state of arrested relaxation
in terms of a minimal phenomenological model of randomly interacting dipoles of
random energies. This model of the plasma forms a starting point to describe
its observed absence of relaxation in terms of many-body localization (MBL).
The large number of accessible Rydberg and excitonic states gives rise to an
unconventional web of many-body interactions that vastly exceeds the complexity
of MBL in a conventional few-level scheme. This experimental platform thus
opens an avenue for the coupling of dipoles in disordered environments that
will demand the development of new theoretical tools.

26
The categories of this paper are: bayes-an
2
The categories of this paper are: math
20
The categories of this paper are: acc-phys
0
The categories of this paper are: hep-ph
8
The categories of this paper are: hep-ex
22
The categories of this paper are: chao-dyn
17
The categories of this paper are: q-fin
27
The categories of this paper are: comp-gas
14
The categories of this paper are: math-ph
37
The categories of this paper are: supr-con
9
The categories of this paper are: nlin
3
The categories of this paper are: physics
24
The categories of this paper are: dg-ga
34
The categories of this paper are: chem-ph
18
The categories of this paper are: econ
21
The categories of this paper are: adap-org