Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Effective equations for reaction coordinates in polymer transport   In the framework of the problem of finding proper reaction coordinates (RCs)
for complex systems and their effective evolution equations, we consider the
case study of a polymer chain in an external double-well potential,
experiencing thermally activated dynamics. Langevin effective equations
describing the macroscopic dynamics of the system can be inferred from data by
using a data-driven approach, once a suitable set of RCs is chosen. We show
that, in this case, the validity of such choice depends on the stiffness of the
polymer's bonds: if they are sufficiently rigid, we can employ a reduced
description based only on the coordinate of the center of mass; whereas, if the
stiffness reduces, the one-variable dynamics is no more Markovian and (at
least) a second reaction coordinate has to be taken into account to achieve a
realistic dynamical description in terms of memoryless Langevin equations.

22
The categories of this paper are: chao-dyn
16
The categories of this paper are: stat
10
The categories of this paper are: q-bio
25
The categories of this paper are: patt-sol
17
The categories of this paper are: q-fin
35
The categories of this paper are: mtrl-th
21
The categories of this paper are: adap-org
28
The categories of this paper are: alg-geom
30
The categories of this paper are: q-alg
8
The categories of this paper are: hep-ex
5
The categories of this paper are: gr-qc
6
The categories of this paper are: astro-ph
12
The categories of this paper are: nucl-th
37
The categories of this paper are: supr-con
2
The categories of this paper are: math
3
The categories of this paper are: physics