Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Vacuum fluctuations and Brownian motion of a charged test particle near
  a reflecting boundary   We study the Brownian motion of a charged test particle coupled to
electromagnetic vacuum fluctuations near a perfectly reflecting plane boundary.
The presence of the boundary modifies the quantum fluctuations of the electric
field, which in turn modifies the motion of the test particle. We calculate the
resulting mean squared fluctuations in the velocity and position of the test
particle. In the case of directions transverse to the boundary, the results are
negative. This can be interpreted as reducing the quantum uncertainty which
would otherwise be present.

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The categories of this paper are: acc-phys
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The categories of this paper are: patt-sol
12
The categories of this paper are: nucl-th
35
The categories of this paper are: mtrl-th
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The categories of this paper are: eess
8
The categories of this paper are: hep-ex
3
The categories of this paper are: physics
32
The categories of this paper are: atom-ph
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The categories of this paper are: solv-int
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The categories of this paper are: nlin
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The categories of this paper are: chao-dyn
10
The categories of this paper are: q-bio
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The categories of this paper are: q-fin
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The categories of this paper are: hep-ph
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The categories of this paper are: cmp-lg
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The categories of this paper are: hep-lat