Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Defect Fluctuations and Lifetimes in Disordered Yukawa Systems   We examine the time dependent defect fluctuations and lifetimes for a
bidisperse disordered assembly of Yukawa particles. At high temperatures, the
noise spectrum of fluctuations is white and the coordination number lifetimes
have a stretched exponential distribution. At lower temperatures, the system
dynamically freezes, the defect fluctuations exhibit a 1/f spectrum, and there
is a power law distribution of the coordination number lifetimes. Our results
indicate that topological defect fluctuations may be a useful way to
characterize systems exhibiting dynamical heterogeneities.

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The categories of this paper are: mtrl-th
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The categories of this paper are: nlin
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The categories of this paper are: alg-geom
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The categories of this paper are: solv-int
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The categories of this paper are: nucl-ex
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The categories of this paper are: physics
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The categories of this paper are: hep-lat
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The categories of this paper are: patt-sol
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The categories of this paper are: ao-sci
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The categories of this paper are: nucl-th
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The categories of this paper are: funct-an
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The categories of this paper are: q-bio
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The categories of this paper are: atom-ph
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The categories of this paper are: comp-gas
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The categories of this paper are: cmp-lg
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The categories of this paper are: econ