Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Planar Super-Landau Models Revisited   We use the methods of PT-symmetric quantum theory to find a one-parameter
family of ISU(1|1)-invariant planar super-Landau models with positive norm,
uncovering an `accidental', and generically spontaneously-broken, worldline
supersymmetry, with charges that have a Sugawara-type representation in terms
of the ISU(1|1) charges. In contrast to standard models of supersymmetric
quantum mechanics, it is the norms of states rather than their energies that
are parameter-dependent, and the spectrum changes discontinuously in the limit
that worldline supersymmetry is restored.

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The categories of this paper are: eess
30
The categories of this paper are: q-alg
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The categories of this paper are: nucl-th
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The categories of this paper are: funct-an
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The categories of this paper are: alg-geom
3
The categories of this paper are: physics
0
The categories of this paper are: hep-ph
27
The categories of this paper are: comp-gas
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The categories of this paper are: adap-org
13
The categories of this paper are: quant-ph
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The categories of this paper are: mtrl-th
5
The categories of this paper are: gr-qc
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The categories of this paper are: stat
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The categories of this paper are: econ
2
The categories of this paper are: math
1
The categories of this paper are: cs