Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Zero-point energy of vacuum fluctuation as a candidate for dark energy
  versus a new conjecture of antigravity based on the modified Einstein field
  equation in general relativity   In order to clarify why the zero-point energy associated with the vacuum
fluctuations cannot be a candidate for the dark energy in the universe, a
comparison with the Casimir effect is analyzed in some detail. A principle of
epistemology is stressed that it is meaningless to talk about an absolute
(isolated) thing. A relative thing can only be observed when it is changing
with respect to other things. Then a new conjecture of antigravity --the
repulsive force between matter and antimatter derived from the modified
Einstein field equation in general relativity-- is proposed. this is due to the
particle-antiparticle symmetry based on a new understanding about the essence
of special relativity. Its possible consequences in the theory of cosmology are
discussed briefly, including a new explanation for the accelerating universe
and gamma-ray-bursts.

11
The categories of this paper are: hep-lat
24
The categories of this paper are: dg-ga
16
The categories of this paper are: stat
27
The categories of this paper are: comp-gas
28
The categories of this paper are: alg-geom
2
The categories of this paper are: math
10
The categories of this paper are: q-bio
6
The categories of this paper are: astro-ph
7
The categories of this paper are: hep-th
30
The categories of this paper are: q-alg
36
The categories of this paper are: cmp-lg
21
The categories of this paper are: adap-org
9
The categories of this paper are: nlin
17
The categories of this paper are: q-fin
18
The categories of this paper are: econ
4
The categories of this paper are: cond-mat