Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Coherent Spin Oscillations in a Disordered Magnet   Most materials freeze when cooled to sufficiently low temperature. We find
that magnetic dipoles randomly distributed in a solid matrix condense into a
spin liquid with spectral properties on cooling that are the diametric opposite
of those for conventional glasses. Measurements of the non-linear magnetic
dynamics in the low temperature liquid reveal the presence of coherent spin
oscillations composed of hundreds of spins with lifetimes up to ten seconds.
These excitations can be labeled by frequency, manipulated by the magnetic
fields from a loop of wire, and permit the encoding of information at multiple
frequencies simultaneously.

16
The categories of this paper are: stat
26
The categories of this paper are: bayes-an
30
The categories of this paper are: q-alg
12
The categories of this paper are: nucl-th
3
The categories of this paper are: physics
21
The categories of this paper are: adap-org
34
The categories of this paper are: chem-ph
19
The categories of this paper are: eess
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The categories of this paper are: patt-sol
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The categories of this paper are: solv-int
33
The categories of this paper are: plasm-ph
15
The categories of this paper are: nucl-ex
36
The categories of this paper are: cmp-lg
0
The categories of this paper are: hep-ph
5
The categories of this paper are: gr-qc
6
The categories of this paper are: astro-ph