Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Interplay of disorder and interactions in a flat-band supporting diamond
  chain   We systematically study the effect of disorder and interactions on a
quasi-one dimensional diamond chain possessing flat bands. Disorder localizes
all the single particle eigenstates, while at low disorder strengths we obtain
weak flat-band based localization (FBL), at high disorder strengths, we see
conventional Anderson localization (AL). The compactly localized (CL)
eigenstates of flat bands show a persisting oscillatory recurrence in the study
of single-particle wavepacket dynamics. For low disorder a damped oscillatory
recurrence behavior is observed which is absent for high disorder.
Non-interacting many particle fermion states also follow the same trend except
showing a delocalizing tendency at intermediate disorder due to the fermionic
statistics in the system. As interactions are switched on, for the finite-sizes
that we are able to study, a non-ergodic `mixed phase' is observed at low
disorder which is separated from the MBL phase at high disorder by a thermal
phase at intermediate-disorder. A study of many-body nonequilibrium dynamics
reinforces these findings.

12
The categories of this paper are: nucl-th
36
The categories of this paper are: cmp-lg
19
The categories of this paper are: eess
14
The categories of this paper are: math-ph
13
The categories of this paper are: quant-ph
29
The categories of this paper are: funct-an
2
The categories of this paper are: math
31
The categories of this paper are: ao-sci
25
The categories of this paper are: patt-sol
18
The categories of this paper are: econ
11
The categories of this paper are: hep-lat
8
The categories of this paper are: hep-ex
34
The categories of this paper are: chem-ph
23
The categories of this paper are: solv-int
5
The categories of this paper are: gr-qc
35
The categories of this paper are: mtrl-th