Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Renormalized scalar propagator around a dispiration   The renormalized Feynman propagator for a scalar field in the background of a
cosmic dispiration (a disclination plus a screw dislocation) is derived,
opening a window to investigate vacuum polarization effects around a cosmic
string with dislocation, as well as in the bulk of an elastic solid carrying a
dispiration. The use of the propagator is illustrated by computing vacuum
fluctuations. In particular it is shown that the dispiration polarizes the
vacuum giving rise to an energy momentum tensor which, as seen from a local
inertial frame, presents non vanishing off-diagonal components. Such a new
effect resembles that where an induced vacuum current arises around a needle
solenoid carrying a magnetic flux (the Aharonov-Bohm effect), and may have
physical consequences. Connections with a closely related background, namely
the spacetime of a spinning cosmic string, are briefly addressed.

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The categories of this paper are: atom-ph
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The categories of this paper are: nucl-th
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The categories of this paper are: q-fin
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The categories of this paper are: cmp-lg
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The categories of this paper are: hep-lat
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The categories of this paper are: chem-ph
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The categories of this paper are: cs
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The categories of this paper are: physics
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The categories of this paper are: eess
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The categories of this paper are: comp-gas
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The categories of this paper are: nucl-ex
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The categories of this paper are: stat
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The categories of this paper are: chao-dyn
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The categories of this paper are: bayes-an
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The categories of this paper are: q-alg
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The categories of this paper are: supr-con