Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Implications of the Cosmic Birefringence Measurement for the Axion Dark
  Matter Search   We show that a recent constraint on the cosmic birefringence effect due to
dark energy can be related to the constraints on the coupling of axion dark
matter to photon, by relying on a simple model of two-axion alignment mechanism
with periodic potentials. Owing to the alignment of the potentials, one linear
combination of two fields provides a nearly flat direction and acts as dark
energy, whereas the other combination provides a steep direction and acts as
dark matter. This scenario solves the known conceptual issues of one-field
model for dark energy and predicts the connection between seemingly disparate
constraints on the dark sectors of our universe.

35
The categories of this paper are: mtrl-th
30
The categories of this paper are: q-alg
31
The categories of this paper are: ao-sci
36
The categories of this paper are: cmp-lg
29
The categories of this paper are: funct-an
9
The categories of this paper are: nlin
12
The categories of this paper are: nucl-th
13
The categories of this paper are: quant-ph
19
The categories of this paper are: eess
15
The categories of this paper are: nucl-ex
11
The categories of this paper are: hep-lat
27
The categories of this paper are: comp-gas
37
The categories of this paper are: supr-con
26
The categories of this paper are: bayes-an
22
The categories of this paper are: chao-dyn
5
The categories of this paper are: gr-qc