Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: The isotropic-nematic interface in suspensions of hard rods: Mean-field
  properties and capillary waves   We present a study of the isotropic-nematic interface in a system of hard
spherocylinders. First we compare results from Monte Carlo simulations and
Onsager density functional theory for the interfacial profiles of the
orientational order parameter and the density. Those interfacial properties
that are not affected by capillary waves are in good agreement, despite the
fact that Onsager theory overestimates the coexistence densities. Then we show
results of a Monte Carlo study of the capillary waves of the interface. In
agreement with recent theoretical investigations (Eur.Phys.J. E {\bf 18} 407
(2005)) we find a strongly anistropic capillary wave spectrum. For the
wave-numbers accessed in our simulations, the spectrum is quadratic,
i.e.elasticity does not play a role. We conjecture that this effect is due to
the strong bending rigidity of the director field in suspensions of
spherocylinders.

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The categories of this paper are: supr-con
30
The categories of this paper are: q-alg
12
The categories of this paper are: nucl-th
23
The categories of this paper are: solv-int
22
The categories of this paper are: chao-dyn
11
The categories of this paper are: hep-lat
13
The categories of this paper are: quant-ph
2
The categories of this paper are: math
16
The categories of this paper are: stat
10
The categories of this paper are: q-bio
19
The categories of this paper are: eess
5
The categories of this paper are: gr-qc
6
The categories of this paper are: astro-ph
18
The categories of this paper are: econ
35
The categories of this paper are: mtrl-th
24
The categories of this paper are: dg-ga