Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Observation of Many-body Dynamical Delocalization in a Kicked Ultracold
  Gas   Contrary to a driven classical system that exhibits chaos phenomena and
diffusive energy growth, a driven quantum system can exhibit dynamical
localization that features energy saturation. However, the evolution of the
dynamically localized state in the presence of many-body interactions has long
remained an open question. Here we experimentally study an interacting 1D
ultracold gas periodically kicked by a pulsed optical lattice, and observe the
interaction-driven emergence of dynamical delocalization and many-body quantum
chaos. The observed dynamics feature a sub-diffusive energy growth manifest
over a broad parameter range of interaction and kick strengths, and shed light
on an area where theoretical approaches are extremely challenging.

12
The categories of this paper are: nucl-th
27
The categories of this paper are: comp-gas
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The categories of this paper are: solv-int
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The categories of this paper are: dg-ga
7
The categories of this paper are: hep-th
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The categories of this paper are: eess
13
The categories of this paper are: quant-ph
25
The categories of this paper are: patt-sol
8
The categories of this paper are: hep-ex
36
The categories of this paper are: cmp-lg
34
The categories of this paper are: chem-ph
21
The categories of this paper are: adap-org
14
The categories of this paper are: math-ph
6
The categories of this paper are: astro-ph
17
The categories of this paper are: q-fin
37
The categories of this paper are: supr-con