Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: A Relativistic Generalization of Fowler-Nordheim Cold Emission in
  Presence of Strong Magnetic Field   A relativistic version of cold emission of electrons in presence of strong
magnetic field, relevant for strongly magnetized neutron stars is obtained. It
is found that in this scenario, a scalar type potential barrier does not allow
quantum tunneling through the surface. Whereas, in presence of a vector type
surface barrier, the probability of electron emission is much larger compared
to the original Fowler-Nordheim cold emission of electrons. It is found that
the relativistic version in presence of strong magnetic field does not follow
exponential decay.

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The categories of this paper are: atom-ph
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The categories of this paper are: mtrl-th
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The categories of this paper are: q-fin
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The categories of this paper are: comp-gas
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The categories of this paper are: bayes-an
10
The categories of this paper are: q-bio
33
The categories of this paper are: plasm-ph
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The categories of this paper are: hep-lat
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The categories of this paper are: hep-th
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The categories of this paper are: solv-int
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The categories of this paper are: stat
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The categories of this paper are: quant-ph
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The categories of this paper are: hep-ph
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The categories of this paper are: supr-con
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The categories of this paper are: gr-qc
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The categories of this paper are: chem-ph