Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Generalized harmonic-fluid approach for the off-diagonal correlations of
  a one-dimensional interacting Bose gas   We develop a generalized harmonic-fluid approach, based on a regularization
of the effective low-energy Luttinger-liquid Hamiltonian, for a one-dimensional
Bose gas with repulsive contact interactions. The method enables us to compute
the complete series corresponding to the large-distance, off-diagonal behavior
of the one-body density matrix for any value of the Luttinger parameter K. We
compare our results with the exact ones known in the Tonks-Girardeau limit of
infinitely large interactions (corresponding to K=1) and, different from the
usual harmonic-fluid approach, we recover the full structure of the series. The
structure is conserved for arbitrary values of the interaction strength, with
power laws fixed by the universal parameter K and a sequence of subleading
corrections.

12
The categories of this paper are: nucl-th
22
The categories of this paper are: chao-dyn
10
The categories of this paper are: q-bio
6
The categories of this paper are: astro-ph
32
The categories of this paper are: atom-ph
20
The categories of this paper are: acc-phys
17
The categories of this paper are: q-fin
19
The categories of this paper are: eess
13
The categories of this paper are: quant-ph
33
The categories of this paper are: plasm-ph
21
The categories of this paper are: adap-org
11
The categories of this paper are: hep-lat
3
The categories of this paper are: physics
24
The categories of this paper are: dg-ga
23
The categories of this paper are: solv-int
0
The categories of this paper are: hep-ph