Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Space-time Supersymmetry in Asymmetric Orbifold Models   We study the condition for the appearance of space-time supercharges in
twisted sectors of asymmetric orbifold models. We present a list of the
asymmetric $Z_N$-orbifold models which satisfy a simple condition necessary for
the appearance of space-time supercharges in twisted sectors. We investigate
whether or not such asymmetric orbifold models possess $N=1$ space-time
supersymmetry and obtain a new class of $N=1$ asymmetric orbifold models. It is
pointed out that the result of space-time supersymmetry does not depend on any
choice of a shift if the order of the left-moving degrees of freedom is
preserved.

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The categories of this paper are: mtrl-th
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The categories of this paper are: quant-ph
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The categories of this paper are: patt-sol
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The categories of this paper are: q-bio
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The categories of this paper are: hep-lat
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The categories of this paper are: dg-ga
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The categories of this paper are: gr-qc
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The categories of this paper are: acc-phys
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The categories of this paper are: econ
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The categories of this paper are: atom-ph
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The categories of this paper are: physics
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The categories of this paper are: astro-ph
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The categories of this paper are: stat
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The categories of this paper are: nucl-ex
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The categories of this paper are: cond-mat
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The categories of this paper are: chem-ph