Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Background-metric Independent Formulation of 4D Quantum Gravity   Using the background-metric independence for the traceless mode as well as
the conformal mode, 4D quantum gravity is described as a quantum field theory
defined on a non-dynamical background-metric. The measure then induces an
action with 4 derivatives. So we think that 4-th order gravity is essential and
the Einstein-Hilbert term should be treated like a mass term. We introduce the
dimensionless self-coupling constant t for the traceless mode. In this paper we
study a model where the measure can be evaluated in the limit $t \to 0$
exactly, using the background-metric independence for the conformal mode. The
t-dependence of the measure is determined perturbatively using the
background-metric independence for the traceless mode.

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The categories of this paper are: mtrl-th
28
The categories of this paper are: alg-geom
3
The categories of this paper are: physics
11
The categories of this paper are: hep-lat
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The categories of this paper are: chem-ph
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The categories of this paper are: q-fin
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The categories of this paper are: dg-ga
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The categories of this paper are: q-bio
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The categories of this paper are: gr-qc
2
The categories of this paper are: math
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The categories of this paper are: acc-phys
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The categories of this paper are: solv-int
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The categories of this paper are: econ
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The categories of this paper are: plasm-ph
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The categories of this paper are: eess
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The categories of this paper are: funct-an