Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Optimal Paths for Spatially Extended Metastable Systems Driven by Noise   The least action principle is exploited as a simulation tool to find the
optimal dynamic path for spatially extended systems driven by a small noise.
Applications are presented for thermally activated switching of a
spatially-extended bistable system as well as the switching dynamics of
magnetic thin films. The issue of nucleation versus propagation is discussed
and the scaling for the number of nucleation events as a function of the
terminal time and other material parameters is computed.

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The categories of this paper are: nucl-ex
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The categories of this paper are: math
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The categories of this paper are: hep-ex
0
The categories of this paper are: hep-ph
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The categories of this paper are: math-ph
34
The categories of this paper are: chem-ph
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The categories of this paper are: adap-org
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The categories of this paper are: q-alg
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The categories of this paper are: hep-th
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The categories of this paper are: comp-gas
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The categories of this paper are: hep-lat
35
The categories of this paper are: mtrl-th
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The categories of this paper are: alg-geom
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The categories of this paper are: patt-sol
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The categories of this paper are: funct-an
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The categories of this paper are: eess