Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Higher-spin kinematics & no ghosts on quantum space-time in Yang-Mills
  matrix models   A classification of bosonic on- and off-shell modes on a cosmological quantum
space-time solution of the IIB matrix model is given, which leads to a
higher-spin gauge theory. In particular, the no-ghost-theorem is established.
The physical on-shell modes consist of 2 towers of higher-spin modes, which are
effectively massless but include would-be massive degrees of freedom. The
off-shell modes consist of 4 towers of higher-spin modes, one of which was
missing previously. The noncommutativity leads to a cutoff in spin, which
disappears in the semi-classical limit. An explicit basis allows to obtain the
full propagator, which is governed by a universal effective metric. The
physical metric fluctuations arise from would-be massive spin 2 modes, which
were previously shown to include the linearized Schwarzschild solution. Due to
the relation with ${\cal N}=4$ super-Yang-Mills, this is expected to define a
consistent quantum theory in 3+1 dimensions, which includes gravity.

16
The categories of this paper are: stat
10
The categories of this paper are: q-bio
6
The categories of this paper are: astro-ph
21
The categories of this paper are: adap-org
11
The categories of this paper are: hep-lat
29
The categories of this paper are: funct-an
9
The categories of this paper are: nlin
26
The categories of this paper are: bayes-an
17
The categories of this paper are: q-fin
34
The categories of this paper are: chem-ph
22
The categories of this paper are: chao-dyn
27
The categories of this paper are: comp-gas
12
The categories of this paper are: nucl-th
20
The categories of this paper are: acc-phys
4
The categories of this paper are: cond-mat
1
The categories of this paper are: cs