Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Buckling instability for a charged and fluctuating semiflexible polymer   In this article we address the problem of Euler's buckling instability in a
charged semi-flexible polymer that is under the action of a compressive force.
We consider this instability as a phase transition and investigate the role of
thermal fluctuations in the buckling critical force. By performing molecular
dynamic simulations, we show that the critical force decreases when the
temperature increases. Repulsive electrostatic interaction in the finite
temperature is in competition with thermal fluctuations to increase the
buckling threshold.

17
The categories of this paper are: q-fin
21
The categories of this paper are: adap-org
10
The categories of this paper are: q-bio
26
The categories of this paper are: bayes-an
8
The categories of this paper are: hep-ex
2
The categories of this paper are: math
16
The categories of this paper are: stat
3
The categories of this paper are: physics
34
The categories of this paper are: chem-ph
24
The categories of this paper are: dg-ga
31
The categories of this paper are: ao-sci
6
The categories of this paper are: astro-ph
28
The categories of this paper are: alg-geom
35
The categories of this paper are: mtrl-th
23
The categories of this paper are: solv-int
33
The categories of this paper are: plasm-ph