Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Scaling limit of the ${\cal Z}_2$ invariant inhomogeneous six-vertex
  model   The work contains a detailed study of the scaling limit of a certain
critical, integrable inhomogeneous six-vertex model subject to twisted boundary
conditions. It is based on a numerical analysis of the Bethe ansatz equations
as well as the powerful analytic technique of the ODE/IQFT correspondence. The
results indicate that the critical behaviour of the lattice system is described
by the gauged ${\rm SL}(2)$ WZW model with certain boundary and reality
conditions imposed on the fields. Our proposal revises and extends the
conjectured relation between the lattice system and the Euclidean black hole
non-linear sigma model that was made in the 2011 paper of Ikhlef, Jacobsen and
Saleur.

18
The categories of this paper are: econ
24
The categories of this paper are: dg-ga
33
The categories of this paper are: plasm-ph
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
34
The categories of this paper are: chem-ph
29
The categories of this paper are: funct-an
35
The categories of this paper are: mtrl-th
11
The categories of this paper are: hep-lat
23
The categories of this paper are: solv-int
22
The categories of this paper are: chao-dyn
15
The categories of this paper are: nucl-ex
25
The categories of this paper are: patt-sol
13
The categories of this paper are: quant-ph
31
The categories of this paper are: ao-sci