Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Searching For Strange Quark Planets   Strange quark matter (SQM) may be the true ground state of matter. According
to this SQM hypothesis, the observed neutron stars actually should all be
strange quark stars. But distinguishing between neutron stars and strange quark
stars by means of obser- vations is extremely difficult. It is interesting to
note that under the SQM hypothesis, less massive objects such as strange quark
planets and strange dwarfs can also stably exist. The extremely high density
and small radius of strange quark planets give us some new perspectives to
identify SQM objects and to test the SQM hypothesis. First, the tidal
disruption radius of strange quark planets is much smaller than normal planets,
so, very close-in exoplanets can be safely identified as candidates of SQM
objects. Sec- ond, gravitational waves (GW) from mergers of strange quark
star-strange quark planet systems are strong enough to be detected by
ground-based GW detectors. As a result, GW observation will be a powerful tool
to probe SQM stars. At the same time, the tidal deformability of SQM planets
can be measured to further strengthen the result.

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The categories of this paper are: chem-ph
17
The categories of this paper are: q-fin
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The categories of this paper are: supr-con
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The categories of this paper are: patt-sol
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The categories of this paper are: acc-phys
7
The categories of this paper are: hep-th
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The categories of this paper are: hep-lat
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The categories of this paper are: alg-geom
2
The categories of this paper are: math
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The categories of this paper are: adap-org
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The categories of this paper are: ao-sci
14
The categories of this paper are: math-ph
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The categories of this paper are: comp-gas
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The categories of this paper are: hep-ex
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The categories of this paper are: quant-ph
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The categories of this paper are: q-alg