Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Quench-induced delocalization   We consider the evolution of an initially localized wave packet after a
sudden change in the Hamiltonian, i.e.\ a quench. When both bound and
scattering eigenstates exist in the post-quench Hamiltonian, one might expect
partial delocalization of the wave packet to ensue. Here we show that if the
quench consists of a sudden switching-off of short-range inter-particle
interactions, then Tan's universal relations guarantee delocalization through
the high-momentum tail of the momentum distribution. Furthermore, we consider
the influence of the range of the interaction and show how a finite range
alters the coupling to highly excited states. We illustrate our results using
numerical simulations of externally trapped particles in one dimension. If the
external potential is both disordered and correlated, then the interaction
quench leads to transport via delocalized states, showing that localization in
disordered systems is sensitive to non-adiabatic changes in the interactions
between particles.

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The categories of this paper are: hep-ph
10
The categories of this paper are: q-bio
8
The categories of this paper are: hep-ex
3
The categories of this paper are: physics
1
The categories of this paper are: cs
31
The categories of this paper are: ao-sci
17
The categories of this paper are: q-fin
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The categories of this paper are: acc-phys
34
The categories of this paper are: chem-ph
5
The categories of this paper are: gr-qc
25
The categories of this paper are: patt-sol
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The categories of this paper are: alg-geom
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The categories of this paper are: comp-gas
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The categories of this paper are: nlin
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The categories of this paper are: plasm-ph
24
The categories of this paper are: dg-ga