Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Super-Horizon modes and cosmic expansion   The large scale structures observed in cosmic maps correspond to
super-horizon (causally disconnected) perturbations in the early Universe that
are usually attributed to scale invariant adiabatic modes from cosmic
Inflation. Here, we interpret discrepant measurements of the expansion rate
$H_0$ (the so called Hubble tension) as super-horizon perturbations and show
that they are neither adiabatic nor scale invariant. We argue that these
measurements indicate that cosmic expansion originates from gravitational
collapse and bounce, rather than from a singular Big Bang. This explains the
observed cosmic acceleration and large scale structure without the need of Dark
Energy or Inflation.

1
The categories of this paper are: cs
36
The categories of this paper are: cmp-lg
33
The categories of this paper are: plasm-ph
37
The categories of this paper are: supr-con
35
The categories of this paper are: mtrl-th
10
The categories of this paper are: q-bio
30
The categories of this paper are: q-alg
16
The categories of this paper are: stat
12
The categories of this paper are: nucl-th
17
The categories of this paper are: q-fin
23
The categories of this paper are: solv-int
27
The categories of this paper are: comp-gas
26
The categories of this paper are: bayes-an
29
The categories of this paper are: funct-an
15
The categories of this paper are: nucl-ex
24
The categories of this paper are: dg-ga