Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Cosmic acceleration from first principles   General relativistic entropic acceleration theory may explain the present
cosmic acceleration from first principles without the need of introducing a
cosmological constant. Following the covariant formulation of non-equilibrium
phenomena in the context of a homogeneous and isotropic
Friedmann-Lemaitre-Robertson-Walker (FLRW) metric, we find that the growth of
entropy associated with the causal horizon of our universe (inside a finite
bubble in eternal inflation) induces an acceleration that is essentially
indistinguishable from that of $\Lambda$CDM, except for a slightly larger
present rate of expansion compared to what would be expected from the CMB in
$\Lambda$CDM, possibly solving the so-called $H_0$ tension. The matter content
of the universe is unchanged and the coincidence problem is resolved since it
is the growth of the causal horizon of matter that introduces this new
relativistic entropic force. The cosmological constant is made unnecessary and
the future hypersurface is Minkowsky rather than de Sitter.

9
The categories of this paper are: nlin
12
The categories of this paper are: nucl-th
31
The categories of this paper are: ao-sci
25
The categories of this paper are: patt-sol
26
The categories of this paper are: bayes-an
4
The categories of this paper are: cond-mat
3
The categories of this paper are: physics
23
The categories of this paper are: solv-int
20
The categories of this paper are: acc-phys
14
The categories of this paper are: math-ph
13
The categories of this paper are: quant-ph
33
The categories of this paper are: plasm-ph
8
The categories of this paper are: hep-ex
27
The categories of this paper are: comp-gas
16
The categories of this paper are: stat
29
The categories of this paper are: funct-an