Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: q-Deformed spin foam models of quantum gravity   We numerically study Barrett-Crane models of Riemannian quantum gravity. We
have extended the existing numerical techniques to handle q-deformed models and
arbitrary space-time triangulations. We present and interpret expectation
values of a few selected observables for each model, including a spin-spin
correlation function which gives insight into the behaviour of the models. We
find the surprising result that, as the deformation parameter q goes to 1
through roots of unity, the limit is discontinuous.

20
The categories of this paper are: acc-phys
3
The categories of this paper are: physics
34
The categories of this paper are: chem-ph
9
The categories of this paper are: nlin
29
The categories of this paper are: funct-an
37
The categories of this paper are: supr-con
22
The categories of this paper are: chao-dyn
23
The categories of this paper are: solv-int
2
The categories of this paper are: math
21
The categories of this paper are: adap-org
35
The categories of this paper are: mtrl-th
0
The categories of this paper are: hep-ph
33
The categories of this paper are: plasm-ph
32
The categories of this paper are: atom-ph
4
The categories of this paper are: cond-mat
17
The categories of this paper are: q-fin