D-brane dynamics and logarithmic superconformal algebras
Author(s) -
Nick E. Mavromatos,
Richard J. Szabo
Publication year - 2001
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 - 10.1088/1126-6708/2001/10/027
Subject(s) - physics , worldsheet , brane , superconformal algebra , mathematical physics , twist , particle physics , supersymmetry , vertex (graph theory) , string (physics) , d brane , string field theory , mathematics , graph , geometry , discrete mathematics
We construct the consistent supersymmetric extensions of the operatorsdescribing the recoil of a D-brane and show that they realize an N=1logarithmic superconformal algebra. The corresponding supersymmetric vertexoperator is related to the action of a twisted superparticle with twist fielddetermined by the angular momentum of the recoiling D-brane and with explicitlybroken kappa-symmetry. We show that the superconformal completion removes thelogarithmic modular divergences that are present in the bosonic string loopscattering amplitudes. These features are all consequences of the relationshipthat exists in these models between worldsheet rescaling and the time evolutionof the D-brane in target space.Comment: 22 pages LaTeX; Typos corrected, references added, various clarifying comments concerning zero dimension states added throughout; to be published in JHE
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