Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Classical and quantum inertia: A matter of principles   A simple, general discussion of the problem of inertia is provided both in
classical physics and in the quantum world. After briefly reviewing the
classical principles of equivalence (weak (WEP), Einstein (EEP), strong (SEP)),
I pass to a presentation of several equivalence statements in nonrelativistic
quantum mechanics and for quantum field vacuum states. It is suggested that a
reasonable type of preferred quantum field vacua may be considered: those
possessing stationary spectra of their vacuum fluctuations with respect to
accelerated classical trajectories

8
The categories of this paper are: hep-ex
20
The categories of this paper are: acc-phys
32
The categories of this paper are: atom-ph
24
The categories of this paper are: dg-ga
25
The categories of this paper are: patt-sol
35
The categories of this paper are: mtrl-th
34
The categories of this paper are: chem-ph
23
The categories of this paper are: solv-int
37
The categories of this paper are: supr-con
22
The categories of this paper are: chao-dyn
14
The categories of this paper are: math-ph
9
The categories of this paper are: nlin
0
The categories of this paper are: hep-ph
36
The categories of this paper are: cmp-lg
1
The categories of this paper are: cs
4
The categories of this paper are: cond-mat