Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Effective interactions mediated between two permeable disks in an active
  fluid   We study steady-state properties of a bath of active Brownian particles
(ABPs) in two dimensions in the presence of two fixed, permeable (hollow)
disklike inclusions, whose interior and exterior regions can exhibit
mismatching motility (self-propulsion) strengths for the ABPs. We show that
such a discontinuous motility field strongly affects spatial distribution of
ABPs and thus also the effective interaction mediated between the inclusions
through the active bath. Such net interactions arise from soft interfacial
repulsions between ABPs that sterically interact with and/or pass through
permeable membranes assumed to enclose the inclusions. Both regimes of
repulsion and attractive (albeit with different mechanisms) are reported and
summarized in overall phase diagrams.

7
The categories of this paper are: hep-th
24
The categories of this paper are: dg-ga
36
The categories of this paper are: cmp-lg
26
The categories of this paper are: bayes-an
14
The categories of this paper are: math-ph
22
The categories of this paper are: chao-dyn
21
The categories of this paper are: adap-org
33
The categories of this paper are: plasm-ph
11
The categories of this paper are: hep-lat
25
The categories of this paper are: patt-sol
30
The categories of this paper are: q-alg
35
The categories of this paper are: mtrl-th
12
The categories of this paper are: nucl-th
5
The categories of this paper are: gr-qc
31
The categories of this paper are: ao-sci
9
The categories of this paper are: nlin