Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Scale Invariance in the Spectral Action   The arbitrary mass scale in the spectral action for the Dirac operator in the
spectral action is made dynamical by introducing a dilaton field. We evaluate
all the low-energy terms in the spectral action and determine the dilaton
couplings. These results are applied to the spectral action of the
noncommutative space defined by the standard model. We show that the effective
action for all matter couplings is scale invariant, except for the dilaton
kinetic term and Einstein-Hilbert term. The resulting action is almost
identical to the one proposed for making the standard model scale invariant as
well as the model for extended inflation and has the same low-energy limit as
the Randall-Sundrum model. Remarkably, all desirable features with correct
signs for the relevant terms are obtained uniquely and without any fine tuning.

31
The categories of this paper are: ao-sci
26
The categories of this paper are: bayes-an
28
The categories of this paper are: alg-geom
11
The categories of this paper are: hep-lat
14
The categories of this paper are: math-ph
24
The categories of this paper are: dg-ga
34
The categories of this paper are: chem-ph
5
The categories of this paper are: gr-qc
1
The categories of this paper are: cs
33
The categories of this paper are: plasm-ph
4
The categories of this paper are: cond-mat
17
The categories of this paper are: q-fin
10
The categories of this paper are: q-bio
16
The categories of this paper are: stat
29
The categories of this paper are: funct-an
0
The categories of this paper are: hep-ph