Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Optimization of thermal noise in multi-loop pendulum suspensions for use
  in interferometric gravitational-wave detectors   We study the thermal-noise spectrum of multi-loop pendulum suspensions for
test masses in interferometric gravitational-wave detectors. The dependence of
the thermal noise on suspension parameters and on properties of the wire
material is discussed for the situation in which the losses are dominated by
the internal friction in the pendulum wires.

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The categories of this paper are: adap-org
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The categories of this paper are: hep-th
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The categories of this paper are: dg-ga
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The categories of this paper are: cmp-lg
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The categories of this paper are: mtrl-th
8
The categories of this paper are: hep-ex
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The categories of this paper are: q-alg
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The categories of this paper are: eess
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The categories of this paper are: econ
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The categories of this paper are: math-ph
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The categories of this paper are: atom-ph
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The categories of this paper are: chem-ph
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The categories of this paper are: ao-sci
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The categories of this paper are: comp-gas
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The categories of this paper are: stat
29
The categories of this paper are: funct-an