Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Transport and diffusion enhancement in non-Gaussian correlated ratchets   Living cells are known to generate non-Gaussian active fluctuations that are
significantly larger than thermal fluctuations owing to various metabolic
activities. Understanding the effect of active fluctuations on various
physicochemical processes, such as the transport of molecular motors, is a
fundamental problem in nonequilibrium physics. Therefore, we experimentally and
numerically study an active Brownian ratchet comprising a colloidal particle in
an optically generated asymmetric periodic potential driven by non-Gaussian
noise with finite-amplitude active bursts, each arriving at random and decaying
exponentially. We determine that the particle velocity is maximum for
relatively sparse bursts with finite correlation time and non-Gaussian
distribution. These occasional kicks are more efficient for transport and
diffusion enhancement of the particle, compared to the incessant kicks of
active Ornstein-Uhlenbeck noise. The ratchet reverses its transport direction
only when the noise correlation time is shorter than the thermal relaxation
time, suggesting possible application in nanoparticle separation.

5
The categories of this paper are: gr-qc
31
The categories of this paper are: ao-sci
17
The categories of this paper are: q-fin
22
The categories of this paper are: chao-dyn
30
The categories of this paper are: q-alg
9
The categories of this paper are: nlin
20
The categories of this paper are: acc-phys
25
The categories of this paper are: patt-sol
10
The categories of this paper are: q-bio
14
The categories of this paper are: math-ph
1
The categories of this paper are: cs
37
The categories of this paper are: supr-con
0
The categories of this paper are: hep-ph
34
The categories of this paper are: chem-ph
12
The categories of this paper are: nucl-th
18
The categories of this paper are: econ