Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Equilibrium phases of dipolar lattice bosons in the presence of random
  diagonal disorder   Ultracold gases offer an unprecedented opportunity to engineer disorder and
interactions in a controlled manner. In an effort to understand the interplay
between disorder, dipolar interaction and quantum degeneracy, we study
two-dimensional hard-core dipolar lattice bosons in the presence of on-site
bound disorder. Our results are based on large-scale path-integral quantum
Monte Carlo simulations by the Worm algorithm. We study the ground state phase
diagram at fixed half-integer filling factor for which the clean system is
either a superfluid at lower dipolar interaction strength or a checkerboard
solid at larger dipolar interaction strength. We find that, even for weak
dipolar interaction, superfluidity is destroyed in favor of a Bose glass at
relatively low disorder strength. Interestingly, in the presence of disorder,
superfluidity persists for values of dipolar interaction strength for which the
clean system is a checkerboard solid. At fixed disorder strength, as the
dipolar interaction is increased, superfluidity is destroyed in favor of a Bose
glass. As the interaction is further increased, the system eventually develops
extended checkerboard patterns in the density distribution. Due to the presence
of disorder, though, grain boundaries and defects, responsible for a finite
residual compressibility, are present in the density distribution. Finally, we
study the robustness of the superfluid phase against thermal fluctuations.

37
The categories of this paper are: supr-con
23
The categories of this paper are: solv-int
31
The categories of this paper are: ao-sci
28
The categories of this paper are: alg-geom
13
The categories of this paper are: quant-ph
30
The categories of this paper are: q-alg
29
The categories of this paper are: funct-an
36
The categories of this paper are: cmp-lg
33
The categories of this paper are: plasm-ph
0
The categories of this paper are: hep-ph
1
The categories of this paper are: cs
19
The categories of this paper are: eess
10
The categories of this paper are: q-bio
15
The categories of this paper are: nucl-ex
5
The categories of this paper are: gr-qc
7
The categories of this paper are: hep-th