Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Early breakdown of area-law entanglement at many-body delocalization
  transition   We introduce the numerical linked cluster (NLC) expansion as a controlled
numerical tool for the study of the many-body localization (MBL) transition in
a disordered system with continuous non-perturbative disorder. Our approach
works directly in the thermodynamic limit, in any spatial dimension, and does
not rely on any finite size scaling procedure. We study the onset of many-body
delocalization through the breakdown of area-law entanglement in a generic
many-body eigenstate. By looking for initial signs of an instability of the
localized phase, we obtain a value for the critical disorder, which we believe
should be a lower bound for the true value, that is higher than current best
estimates from finite size studies. This implies that most current methods tend
to overestimate the extent of the localized phase due to finite size effects
making the localized phase appear stable at small length scales. We also study
the mobility edge in these systems as a function of energy density, and find
that our conclusion is the same at all examined energies.

9
The categories of this paper are: nlin
21
The categories of this paper are: adap-org
10
The categories of this paper are: q-bio
32
The categories of this paper are: atom-ph
13
The categories of this paper are: quant-ph
17
The categories of this paper are: q-fin
11
The categories of this paper are: hep-lat
36
The categories of this paper are: cmp-lg
25
The categories of this paper are: patt-sol
35
The categories of this paper are: mtrl-th
19
The categories of this paper are: eess
14
The categories of this paper are: math-ph
15
The categories of this paper are: nucl-ex
22
The categories of this paper are: chao-dyn
16
The categories of this paper are: stat
37
The categories of this paper are: supr-con