Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Holographic Principle, Cosmological Constant and Cyclic Cosmology   The holographic principle provides a deep insight into quantum gravity and
resolves the fine-tuning crisis concerning the cosmological constant.
Holographic dark energy introduces new ultra-violet (UV) and infra-red (IR)
cutoffs into quantum gravity which are necessarily strongly related. The
equation of state for dark energy $\omega = p/\rho$ is discussed from the
holographic point of view. The phantom option of $\omega < -1$ is resurrected,
as in an earlier cyclic cosmology. Such a cyclic model can, however, equally
use the cosmological constant with $\omega = -1$.

18
The categories of this paper are: econ
4
The categories of this paper are: cond-mat
36
The categories of this paper are: cmp-lg
13
The categories of this paper are: quant-ph
16
The categories of this paper are: stat
34
The categories of this paper are: chem-ph
11
The categories of this paper are: hep-lat
35
The categories of this paper are: mtrl-th
31
The categories of this paper are: ao-sci
33
The categories of this paper are: plasm-ph
30
The categories of this paper are: q-alg
29
The categories of this paper are: funct-an
2
The categories of this paper are: math
28
The categories of this paper are: alg-geom
1
The categories of this paper are: cs
26
The categories of this paper are: bayes-an