Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: A tensor model for nematic phases of bent-core molecules based on
  molecular theory   We construct a tensor model for nematic phases of bent-core molecules from
molecular theory. The form of free energy is determined by molecular symmetry,
which includes the couplings and derivatives of a vector and two second-order
tensors, with the coefficients determined by molecular parameters. We use the
model to study the nematic phases resulted from the hard-core potential. Unlike
most macroscopic models, we are able to obtain the phase diagram about the
molecular parameters, but not merely some phenomenological coefficients. The
tensor model is applicable to other molecules with the same symmetry, which we
demonstrate by studying the phase diagram of star molecules.

31
The categories of this paper are: ao-sci
11
The categories of this paper are: hep-lat
1
The categories of this paper are: cs
37
The categories of this paper are: supr-con
24
The categories of this paper are: dg-ga
19
The categories of this paper are: eess
28
The categories of this paper are: alg-geom
23
The categories of this paper are: solv-int
6
The categories of this paper are: astro-ph
33
The categories of this paper are: plasm-ph
8
The categories of this paper are: hep-ex
9
The categories of this paper are: nlin
20
The categories of this paper are: acc-phys
10
The categories of this paper are: q-bio
27
The categories of this paper are: comp-gas
21
The categories of this paper are: adap-org