Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Holomorphic Tachyons and Fractional D-branes   We study tachyon condensation on brane-antibrane systems in orbifold theories
from the viewpoint of boundary string field theory. We show that the
condensation of holomorphic tachyon fields generates various fractional
D-branes. The boundary N=2 supersymmetry in the world-sheet theory ensures this
result exactly. Furthermore, our results are consistent with the twisted
RR-charges from detailed calculations of boundary states. We also discuss the
generation of RR-charges due to holomorphic tachyon fields on multiple
brane-antibrane pairs in flat space.

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The categories of this paper are: solv-int
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The categories of this paper are: q-bio
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The categories of this paper are: gr-qc
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The categories of this paper are: comp-gas
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The categories of this paper are: plasm-ph
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The categories of this paper are: adap-org
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The categories of this paper are: eess
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The categories of this paper are: nucl-th
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The categories of this paper are: hep-lat
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The categories of this paper are: chem-ph
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The categories of this paper are: patt-sol
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The categories of this paper are: hep-ph
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The categories of this paper are: quant-ph
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The categories of this paper are: nucl-ex
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The categories of this paper are: stat
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The categories of this paper are: bayes-an