Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Sliding phase in randomly stacked 2D superfluids/superconductors   Using large scale quantum Monte Carlo simulations of lattice bosonic models,
we precisely investigate the effect of weak Josephson tunneling between 2D
superfluid or superconducting layers. In the clean case, the
Kosterlitz-Thouless transition immediately turns into 3DXY, with phase
coherence and superflow in all spatial directions, and a strong enhancement of
the critical temperature. However, when disorder is present, rare regions
fluctuations can lead to an intermediate finite temperature phase --- the so
called sliding regime --- where only 2D superflow occurs within the layers
without any transverse superfluid coherence, while a true 3D Bose-Einstein
condensate exists. Critical properties of such an unconventional regime are
carefully investigated.

27
The categories of this paper are: comp-gas
31
The categories of this paper are: ao-sci
15
The categories of this paper are: nucl-ex
3
The categories of this paper are: physics
19
The categories of this paper are: eess
11
The categories of this paper are: hep-lat
35
The categories of this paper are: mtrl-th
12
The categories of this paper are: nucl-th
16
The categories of this paper are: stat
24
The categories of this paper are: dg-ga
9
The categories of this paper are: nlin
30
The categories of this paper are: q-alg
32
The categories of this paper are: atom-ph
20
The categories of this paper are: acc-phys
23
The categories of this paper are: solv-int
7
The categories of this paper are: hep-th