Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Tricritical Ising phase transition in two-ladder Majorana fermion
  lattice   We introduce a two-ladder lattice model with interacting Majorana fermions
that could be realized on the surfaces of a topological insulator film. We
study this model by a combination of analytical and numerical techniques and
find a phase diagram that features both gapless and gapped phases as well as
interesting phase transitions including a quantum critical point in the
tricritical Ising (TCI) universality class. The latter occurs at an
intermediate coupling strength at a meeting point of a first-order transition
line and an Ising critical line and is known to be described by a
superconformal field theory with central charge $c =\frac{7}{10}$. We discuss
the experimental feasibility of constructing the model and tuning parameters to
the vicinity of the TCI point where signatures of the elusive supersymmetry can
be observed.

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The categories of this paper are: atom-ph
0
The categories of this paper are: hep-ph
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The categories of this paper are: nucl-th
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The categories of this paper are: alg-geom
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The categories of this paper are: stat
2
The categories of this paper are: math
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The categories of this paper are: patt-sol
13
The categories of this paper are: quant-ph
3
The categories of this paper are: physics
1
The categories of this paper are: cs
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The categories of this paper are: eess
14
The categories of this paper are: math-ph
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The categories of this paper are: supr-con
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The categories of this paper are: comp-gas
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The categories of this paper are: q-fin
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The categories of this paper are: adap-org