Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: On the correspondence between quantum and classical variational
  principles   Classical variational principles can be deduced from quantum variational
principles via formal reparameterization of the latter. It is shown that such
reparameterization is possible without invoking any assumptions other than
classicality and without appealing to dynamical equations. As examples, first
principle variational formulations of classical point-particle and cold-fluid
motion are derived from their quantum counterparts for Schrodinger, Pauli, and
Klein-Gordon particles.

27
The categories of this paper are: comp-gas
32
The categories of this paper are: atom-ph
9
The categories of this paper are: nlin
26
The categories of this paper are: bayes-an
11
The categories of this paper are: hep-lat
33
The categories of this paper are: plasm-ph
20
The categories of this paper are: acc-phys
7
The categories of this paper are: hep-th
10
The categories of this paper are: q-bio
19
The categories of this paper are: eess
0
The categories of this paper are: hep-ph
12
The categories of this paper are: nucl-th
29
The categories of this paper are: funct-an
37
The categories of this paper are: supr-con
36
The categories of this paper are: cmp-lg
22
The categories of this paper are: chao-dyn