Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Irreversible dynamics in quantum many-body systems   Irreversibility, despite being a necessary condition for thermalization,
still lacks a sound understanding in the context of isolated quantum many-body
systems. In this work we approach this question by studying the behavior of
generic many-body systems under imperfect effective time reversal, where the
imperfection is introduced as a perturbation of the many-body state at the
point of time reversal. Based on numerical simulations of the full quantum
dynamics we demonstrate that observable echos occurring in this setting decay
exponentially with a rate that is independent of the perturbation; hence, the
sensitivity to perturbations is intrinsic to the system meaning that the
dynamics is effectively irreversible.

15
The categories of this paper are: nucl-ex
7
The categories of this paper are: hep-th
5
The categories of this paper are: gr-qc
9
The categories of this paper are: nlin
26
The categories of this paper are: bayes-an
35
The categories of this paper are: mtrl-th
34
The categories of this paper are: chem-ph
27
The categories of this paper are: comp-gas
17
The categories of this paper are: q-fin
10
The categories of this paper are: q-bio
1
The categories of this paper are: cs
12
The categories of this paper are: nucl-th
31
The categories of this paper are: ao-sci
23
The categories of this paper are: solv-int
30
The categories of this paper are: q-alg
8
The categories of this paper are: hep-ex