Non-BPS branes on a Calabi-Yau threefold and Bose-Fermi degeneracy | Zendy

Mihail Mihailescu | Zendy; Radu Tǎtar | Zendy

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Non-BPS branes on a Calabi-Yau threefold and Bose-Fermi degeneracy

Author(s) -

Mihail Mihailescu,

Radu Tǎtar

Publication year - 2000

Publication title -

journal of high energy physics

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.998

H-Index - 261

eISSN - 1126-6708

pISSN - 1029-8479

DOI - 10.1088/1126-6708/2000/02/019

Subject(s) - physics , moduli space , degeneracy (biology) , brane , calabi–yau manifold , brane cosmology , string (physics) , d brane , gauge theory , theoretical physics , string theory , mathematical physics , space (punctuation) , quantum mechanics , pure mathematics , mathematics , biology , linguistics , philosophy , bioinformatics

We consider the spectrum of open strings for non-BPS D-brane configuration intype II string theory on a Calabi-Yau threefold. In general, there is nodegeneracy between bosonic and fermionic states. However we find special valuesfor the moduli space of Calabi-Yau threefolds there are non-BPS braneconfigurations which have an exact degeneracy between bosonic and fermionicstates. For these values there is no force between pairs of non-BPS D-branes.This gives rise to a possibility of building diverse non-supersymmetric gaugefield theories on the brane world-volume. We use the approach recentlyelaborated by Gaberdiel and Sen.Comment: Latex, 13 pages, one reference adde

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