Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: On Majorana fermions on the lattice   The construction of massless Majorana fermions with chiral Yukawa couplings
on the lattice is considered. We find topological obstructions tightly linked
to those underlying the Nielsen-Ninomiya no-go theorem. In contradistinction to
chiral fermions the obstructions originate only from the combination of the
Dirac action and the Yukawa term. These findings are used to construct a
chirally invariant lattice action. We also show that the path intgral of this
theory is given by the Pfaffian of the corresponding Dirac operator.

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The categories of this paper are: comp-gas
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The categories of this paper are: acc-phys
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The categories of this paper are: q-alg
5
The categories of this paper are: gr-qc
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The categories of this paper are: funct-an
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The categories of this paper are: nucl-ex
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The categories of this paper are: adap-org
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The categories of this paper are: q-fin
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The categories of this paper are: astro-ph
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The categories of this paper are: supr-con
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The categories of this paper are: econ
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The categories of this paper are: math-ph
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The categories of this paper are: solv-int
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The categories of this paper are: chem-ph
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The categories of this paper are: eess
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The categories of this paper are: patt-sol