Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Mode Analysis for Energetics of a Moving Charge In Lorentz- and
  CPT-Violating Electrodynamics   In isotropic but Lorentz- and CPT-violating electrodynamics, it is known that
a charge in unifom motion does not lose any energy to Cerenkov radiation. This
presents a puzzle, since the radiation appears to be kinematically allowed for
many modes. Studying the Fourier transforms of the most important terms in the
modified magnetic field and Poynting vector, we confirm the vanishing of the
the radiation rate. Moreover, we show that the Fourier transform of the field
changes sign between small and large wave numbers. This enables modes with very
long wavelengths to carry negative energies, which cancel out the positive
energies carried away by modes with shorter wavelengths. This cancelation had
previously been inferred but never explicitly demonstrated.

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The categories of this paper are: hep-ph
37
The categories of this paper are: supr-con
24
The categories of this paper are: dg-ga
36
The categories of this paper are: cmp-lg
32
The categories of this paper are: atom-ph
17
The categories of this paper are: q-fin
25
The categories of this paper are: patt-sol
6
The categories of this paper are: astro-ph
21
The categories of this paper are: adap-org
15
The categories of this paper are: nucl-ex
18
The categories of this paper are: econ
1
The categories of this paper are: cs
27
The categories of this paper are: comp-gas
13
The categories of this paper are: quant-ph
29
The categories of this paper are: funct-an
28
The categories of this paper are: alg-geom