Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Long-range phase order in two dimensions under shear flow   We theoretically and numerically investigate a two-dimensional O(2) model
where an order parameter is convected by shear flow. We show that a long-range
phase order emerges in two dimensions as a result of anomalous suppression of
phase fluctuations by the shear flow. Furthermore, we use the finite-size
scaling theory to demonstrate that a phase transition to the long-range ordered
state from the disordered state is second order. At a transition point far from
equilibrium, the critical exponents turn out to be close to the mean-field
value for equilibrium systems.

3
The categories of this paper are: physics
11
The categories of this paper are: hep-lat
20
The categories of this paper are: acc-phys
27
The categories of this paper are: comp-gas
28
The categories of this paper are: alg-geom
31
The categories of this paper are: ao-sci
25
The categories of this paper are: patt-sol
7
The categories of this paper are: hep-th
22
The categories of this paper are: chao-dyn
29
The categories of this paper are: funct-an
26
The categories of this paper are: bayes-an
18
The categories of this paper are: econ
2
The categories of this paper are: math
1
The categories of this paper are: cs
30
The categories of this paper are: q-alg
24
The categories of this paper are: dg-ga