Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Intrinsic Roughening and Phase Condensation in Strongly Interacting
  Systems   Most of our current understanding of phase separation is based on ideas that
disregard correlations between constituents. Here we illuminate unexpected
effects of correlations on the structure and thermodynamics of interfaces and
in turn phase separation, which are decisive in systems with strong
interactions. Evaluating the continuum limit of the Ising model on the
Bethe-Guggenheim level we develop a Cahn-Hilliard theory that takes into
account pair correlations. These are shown to cause an intrinsic roughening of
interfaces at interaction strengths near and above the thermal energy, which is
corroborated in the Ising model. Roughening is a result of correlations
stabilizing large-scale inhomogeneities at sufficiently strong coupling, and is
shown to have profound implications for nucleation phenomena. The widely
adopted Flory-Huggins theory in turn predicts an unphysical behavior already at
moderate interactions. We discuss the biological relevance of our results in
the context of phase condensation of strongly interacting methyl-accepting
chemotaxis proteins in bacterial membranes. Our results identify pair
correlations as an essential determinant of interfaces and condensates in the
strong interaction limit that so far seems to have been overlooked.

29
The categories of this paper are: funct-an
20
The categories of this paper are: acc-phys
35
The categories of this paper are: mtrl-th
11
The categories of this paper are: hep-lat
33
The categories of this paper are: plasm-ph
30
The categories of this paper are: q-alg
12
The categories of this paper are: nucl-th
6
The categories of this paper are: astro-ph
5
The categories of this paper are: gr-qc
27
The categories of this paper are: comp-gas
34
The categories of this paper are: chem-ph
26
The categories of this paper are: bayes-an
0
The categories of this paper are: hep-ph
19
The categories of this paper are: eess
15
The categories of this paper are: nucl-ex
18
The categories of this paper are: econ