Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Inhomogeneous activity enhances density phase separation in active model
  B   We study the binary phase separation in active model B, on a two-dimensional
substrate with inhomogeneous activity. The activity was introduced with a
maximum value at the center of the box and spread as a Bivariate-Gaussian
distribution as we move away from the center. The system was studied for three
different intensities of the distribution. Towards the boundary of the box,
activity is zero or the model is similar to the passive model B. We start from
the random homogeneous distribution of density of particles, and the system
evolves towards a structured distribution of density. With time, density starts
to phase separately with maximum density at the center of the box and decreases
as we move away from the center of the box. The width of the density profile at
the center increases as a power lawexponent{\alpha}(t) remains close between
2/3 to 3/4 up to some moderate time and then decays to zero in the steady
state. Hence, our result shows the response of density in an active binary
system with respect to the patterned substrate. It can be used to design
devices useful for the trapping and segregation of active particles.

11
The categories of this paper are: hep-lat
15
The categories of this paper are: nucl-ex
5
The categories of this paper are: gr-qc
28
The categories of this paper are: alg-geom
36
The categories of this paper are: cmp-lg
26
The categories of this paper are: bayes-an
2
The categories of this paper are: math
35
The categories of this paper are: mtrl-th
30
The categories of this paper are: q-alg
10
The categories of this paper are: q-bio
22
The categories of this paper are: chao-dyn
21
The categories of this paper are: adap-org
20
The categories of this paper are: acc-phys
18
The categories of this paper are: econ
32
The categories of this paper are: atom-ph
24
The categories of this paper are: dg-ga