Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Fine-structure constant constraints on dark energy   We use astrophysical and atomic clock tests of the stability of the
fine-structure constant $\alpha$, together with Type Ia supernova and Hubble
parameter data, to constrain the simplest class of dynamical dark energy models
where the same degree of freedom is assumed to provide both the dark energy and
(through a dimensionless coupling, $\zeta$, to the electromagnetic sector) the
$\alpha$ variation. We show how current data tightly constrains a combination
of $\zeta$ and the dark energy equation of state $w_0$. At the $95\%$
confidence level and marginalizing over $w_0$ we find $|\zeta|<5\times10^{-6}$,
with the atomic clock tests dominating the constraints. The forthcoming
generation of high-resolution ultra-stable spectrographs will enable
significantly tighter constraints.

36
The categories of this paper are: cmp-lg
13
The categories of this paper are: quant-ph
26
The categories of this paper are: bayes-an
15
The categories of this paper are: nucl-ex
23
The categories of this paper are: solv-int
37
The categories of this paper are: supr-con
21
The categories of this paper are: adap-org
27
The categories of this paper are: comp-gas
1
The categories of this paper are: cs
34
The categories of this paper are: chem-ph
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The categories of this paper are: plasm-ph
25
The categories of this paper are: patt-sol
32
The categories of this paper are: atom-ph
35
The categories of this paper are: mtrl-th
17
The categories of this paper are: q-fin
20
The categories of this paper are: acc-phys