Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Quantum phase space trajectories with application to quantum cosmology   We develop an approach to quantum dynamics based on quantum phase space
trajectories. The latter are built from a unitary irreducible representation of
the symmetry group of the respective classical phase space. We use a quantum
action functional to derive the basic equations. In principle, our formulation
is equivalent to the Hilbert space formulation. However, the former allows for
consistent truncations to reduced phase spaces in which approximate quantum
dynamics can be derived. We believe that our approach can be very useful in the
domain of quantum cosmology and therefore, we use the cosmological phase space
example to establish the basic equations of this formalism.

25
The categories of this paper are: patt-sol
23
The categories of this paper are: solv-int
12
The categories of this paper are: nucl-th
21
The categories of this paper are: adap-org
17
The categories of this paper are: q-fin
31
The categories of this paper are: ao-sci
22
The categories of this paper are: chao-dyn
0
The categories of this paper are: hep-ph
3
The categories of this paper are: physics
30
The categories of this paper are: q-alg
19
The categories of this paper are: eess
4
The categories of this paper are: cond-mat
26
The categories of this paper are: bayes-an
24
The categories of this paper are: dg-ga
1
The categories of this paper are: cs
7
The categories of this paper are: hep-th