Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: An Effective Photon Momentum in a Dielectric Medium: A Relativistic
  Approach   We use a relativistic argument to define an effective photon that travels
through a transparent (non-absorbing) nondispersive dielectric medium of index
of refraction $n$. If $p$ is the momentum of the photon in a vacuum, then the
momentum of an effective photon inside the medium may be of the form $p_{\rm
eff}=pn^\alpha$ and still reproduce the observed transverse relativistic drift
when the medium is in motion. We employ an energy argument to determine the
value of the exponent to be $\alpha =-1$, so that the effective photon momentum
is $p_{\rm eff}=p/n$, which is the Abraham momentum.

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The categories of this paper are: astro-ph
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The categories of this paper are: ao-sci
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The categories of this paper are: comp-gas
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The categories of this paper are: funct-an
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The categories of this paper are: stat
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The categories of this paper are: q-fin
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The categories of this paper are: econ
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The categories of this paper are: dg-ga
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The categories of this paper are: alg-geom
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The categories of this paper are: supr-con
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The categories of this paper are: atom-ph
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The categories of this paper are: quant-ph
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The categories of this paper are: plasm-ph
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The categories of this paper are: hep-ex
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The categories of this paper are: nlin
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The categories of this paper are: hep-th