Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: The Superembedding Origin of the Berkovits Pure Spinor Covariant
  Quantization of Superstrings   We show that the pure spinor formalism proposed by Berkovits to covariantly
quantize superstrings is a gauge fixed, twisted version of the complexified n=2
superembedding formulation of the superstring. This provides the Berkovits
approach with a geometrical superdiffeomorphism invariant ground. As a
consequence, the absence of the worldsheet (super)diffeomorphism ghosts in the
pure spinor quantization prescription and the nature of the Berkovits BRST
charge and antighost are clarified. Since superembedding is classically
equivalent to the Green-Schwarz formulation, we thus also relate the latter to
the pure spinor construction.

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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: cond-mat
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The categories of this paper are: patt-sol
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The categories of this paper are: stat
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The categories of this paper are: hep-lat
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The categories of this paper are: cmp-lg
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The categories of this paper are: chao-dyn
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The categories of this paper are: chem-ph
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The categories of this paper are: q-bio
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The categories of this paper are: adap-org
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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: cs
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The categories of this paper are: solv-int
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The categories of this paper are: funct-an