Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Quantum quenches in disordered systems: Approach to thermal equilibrium
  without a typical relaxation time   We study spectral properties and the dynamics after a quench of
one-dimensional spinless fermions with short-range interactions and long-range
random hopping. We show that a sufficiently fast decay of the hopping term
promotes localization effects at finite temperature, which prevents
thermalization even if the classical motion is chaotic. For slower decays, we
find that thermalization does occur. However, within this model, the latter
regime falls in an unexpected universality class, namely, observables exhibit a
power-law (as opposed to an exponential) approach to their thermal expectation
values.

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The categories of this paper are: nlin
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The categories of this paper are: physics
23
The categories of this paper are: solv-int
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The categories of this paper are: patt-sol
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The categories of this paper are: astro-ph
29
The categories of this paper are: funct-an
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The categories of this paper are: plasm-ph
34
The categories of this paper are: chem-ph
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The categories of this paper are: adap-org
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The categories of this paper are: hep-ex
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The categories of this paper are: eess
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The categories of this paper are: nucl-ex
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The categories of this paper are: econ
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The categories of this paper are: alg-geom
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The categories of this paper are: supr-con
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The categories of this paper are: q-fin