Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Spontaneous helicity of a polymer with side-loops confined to a cylinder   Inspired by recent experiments on the spatial organization of bacterial
chromosomes, we consider a type of "bottle brush" polymer consisting of a
flexible backbone chain, to which flexible side loops are connected. We show
that such a model with an open linear backbone spontaneously adopts a helical
structure with a well-defined pitch when confined to small cylindrical volume.
This helicity persists over a range of sizes and aspect-ratios of the cylinder,
provided the packing fraction of the chain is suitably large. We analyze this
results in terms of the interplay between the effective stiffness and actual
intra-chain packing effects caused by the side-loops in response to the
confinement. For the case of a circular backbone, mimicking e.g. the E. coli
chromosome, the polymer adopts a linearized configuration of two parallel
helices connected at the cylinder poles.

15
The categories of this paper are: nucl-ex
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The categories of this paper are: quant-ph
6
The categories of this paper are: astro-ph
26
The categories of this paper are: bayes-an
18
The categories of this paper are: econ
33
The categories of this paper are: plasm-ph
21
The categories of this paper are: adap-org
31
The categories of this paper are: ao-sci
30
The categories of this paper are: q-alg
2
The categories of this paper are: math
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The categories of this paper are: q-fin
27
The categories of this paper are: comp-gas
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The categories of this paper are: solv-int
37
The categories of this paper are: supr-con
5
The categories of this paper are: gr-qc
32
The categories of this paper are: atom-ph