Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Coarse-grained surface energies and temperature-induced anchoring
  transitions in nematic liquid crystals   We introduce a coarse-grained description of the surface energy of a nematic
liquid crystal. The thermal fluctuations of the nematic director close to the
surface renormalize at macroscopic scales the bare surface potential in a
temperature-dependent way. The angular dependence of the renormalized potential
is dramatically smoothed, thus explaining the success of the Rapini-Papoular
form. Close to the isotropic phase, the anchoring energy is strongly suppressed
and the change of its shape allows for anchoring transitions. Our theory
describes quantitatively the temperature dependence of the anchoring energy and
the temperature-induced anchoring transitions reported in the literature.

22
The categories of this paper are: chao-dyn
35
The categories of this paper are: mtrl-th
5
The categories of this paper are: gr-qc
19
The categories of this paper are: eess
31
The categories of this paper are: ao-sci
7
The categories of this paper are: hep-th
1
The categories of this paper are: cs
36
The categories of this paper are: cmp-lg
2
The categories of this paper are: math
27
The categories of this paper are: comp-gas
30
The categories of this paper are: q-alg
33
The categories of this paper are: plasm-ph
20
The categories of this paper are: acc-phys
12
The categories of this paper are: nucl-th
34
The categories of this paper are: chem-ph
14
The categories of this paper are: math-ph