Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Structure of Correlated Worldline Theories of Quantum Gravity   We consider the general form of "Correlated Worldline" (CWL) theories of
quantum gravity. We show that one can have 2 different kinds of CWL theory, in
which the generating functional is written as either a sum or a product over
multiple copies of the coupled matter and gravitational fields. In both
versions, the paths in a functional formulation are correlated via gravity
itself, causing a breakdown of the superposition principle; however, the
product form survives consistency tests not satisfied by the summed form. To
better understand the structure of these two theories, we show how to perform
diagrammatic expansions in the gravitational coupling for each version of CWL
theory, using particle propagation and scalar fields as examples. We explicitly
calculate contributions to 2-point and 4-point functions, again for each
version of the theory, up to 2nd-order in the gravitational coupling.

22
The categories of this paper are: chao-dyn
7
The categories of this paper are: hep-th
8
The categories of this paper are: hep-ex
34
The categories of this paper are: chem-ph
24
The categories of this paper are: dg-ga
29
The categories of this paper are: funct-an
15
The categories of this paper are: nucl-ex
25
The categories of this paper are: patt-sol
21
The categories of this paper are: adap-org
11
The categories of this paper are: hep-lat
1
The categories of this paper are: cs
2
The categories of this paper are: math
28
The categories of this paper are: alg-geom
26
The categories of this paper are: bayes-an
35
The categories of this paper are: mtrl-th
3
The categories of this paper are: physics