Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Universal Entanglement and an Information-Complete Quantum Theory   The most challenging problem of modern physics is how to reconcile quantum
theory and general relativity, namely, to find a consistent quantum theory in
which gravity is quantized. This Progress Report focuses on such a tentative
theory called the information-complete quantum theory (ICQT), in which (1)
spacetime (gravity) as a physical quantum system plays a central role for
formulating the theory, and (2) there are no any classical systems and
concepts. Here universal spacetime-matter entanglement "glues" spacetime and
matter (matter fermions and their gauge fields) as an indivisible trinity,
encodes information-complete physical predictions of the world, and is as
universal as universal gravitation. After summarizing the basic theoretic
structure of the ICQT, conceptual advances achieved so far and some new issues
within the ICQT are considered. While such a theory integrating quantum gravity
is of fundamental interest to a wider audience, its relevance to quantum
information technologies is discussed, with emphasis on its potential impacts
on quantum computing and quantum communication.

34
The categories of this paper are: chem-ph
10
The categories of this paper are: q-bio
33
The categories of this paper are: plasm-ph
26
The categories of this paper are: bayes-an
30
The categories of this paper are: q-alg
21
The categories of this paper are: adap-org
9
The categories of this paper are: nlin
24
The categories of this paper are: dg-ga
6
The categories of this paper are: astro-ph
4
The categories of this paper are: cond-mat
37
The categories of this paper are: supr-con
18
The categories of this paper are: econ
27
The categories of this paper are: comp-gas
15
The categories of this paper are: nucl-ex
8
The categories of this paper are: hep-ex
20
The categories of this paper are: acc-phys