Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: CMB interferometry   Interferometry has been a very successful tool for measuring anisotropies in
the cosmic microwave background. Interferometers provided the first constraints
on CMB anisotropies on small angular scales (l~10000) in the 1980s and then in
the late 1990s and early 2000s made ground-breaking measurements of the CMB
power spectrum at intermediate and small angular scales covering the l-range
~100-4000. In 2002 the DASI made the first detection of CMB polarization which
remains a major goal for current and future CMB experiments. Interferometers
have also made major contributions to the detection and surveying of the
Sunyaev-Zel'dovich (SZ) effect in galaxy clusters. In this short review I cover
the key aspects that made interferometry well-suited to CMB measurements and
summarise some of the central observations that have been made. I look to the
future and in particular to HI intensity mapping at high redshifts that could
make use of the advantages of interferometry.

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The categories of this paper are: patt-sol
36
The categories of this paper are: cmp-lg
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The categories of this paper are: nlin
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The categories of this paper are: stat
3
The categories of this paper are: physics
24
The categories of this paper are: dg-ga
5
The categories of this paper are: gr-qc
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The categories of this paper are: ao-sci
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The categories of this paper are: supr-con
4
The categories of this paper are: cond-mat
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The categories of this paper are: nucl-ex
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The categories of this paper are: mtrl-th
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The categories of this paper are: chem-ph
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The categories of this paper are: q-bio
32
The categories of this paper are: atom-ph
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The categories of this paper are: math-ph