Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Exact solution for a traversable wormhole in a curvature-coupled
  antisymmetric background field   In this work, we study a traversable wormhole sourced by an ideal matter
fluid with an antisymmetric 2-tensor background field coupled to gravity in a
scenario of spontaneously broken Lorentz symmetry. Contrary to employed in the
literature, we use a nonminimal curvature-coupling term
$B^{\mu\nu}B^{\kappa\lambda}R_{\mu\nu\kappa\lambda}$ which incorporates all
three kinds of Lorentz-violating coefficient for the pure-gravity sector of the
minimal standard-model extension. We find that the wormhole is
non-asymptotically globally flat and determine the allowed parameters of the
theory, showing that the matter fluid must be necessarily anisotropic. We also
analyze the energy conditions, checking their validity range and comparing them
with those predicted by general relativity.

16
The categories of this paper are: stat
23
The categories of this paper are: solv-int
36
The categories of this paper are: cmp-lg
21
The categories of this paper are: adap-org
22
The categories of this paper are: chao-dyn
31
The categories of this paper are: ao-sci
27
The categories of this paper are: comp-gas
26
The categories of this paper are: bayes-an
35
The categories of this paper are: mtrl-th
1
The categories of this paper are: cs
11
The categories of this paper are: hep-lat
9
The categories of this paper are: nlin
12
The categories of this paper are: nucl-th
6
The categories of this paper are: astro-ph
25
The categories of this paper are: patt-sol
29
The categories of this paper are: funct-an