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Dyon Spectrum in N=4 Supersymmetric Type II String Theories

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arxiv hep-th/0607155 v2 pith:33XESXCU submitted 2006-07-21 hep-th

Justin R. David , Dileep P. Jatkar , Ashoke Sen This is my paper · ORCID
classification hep-th
keywords entropystringactionblackcomputedcorrectionscurvatureeffective
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We compute the spectrum of quarter BPS dyons in freely acting Z_2 and Z_3 orbifolds of type II string theory compactified on a six dimensional torus. For large charges the result for statistical entropy computed from the degeneracy formula agrees with the corresponding black hole entropy to first non-leading order after taking into account corrections due to the curvature squared terms in the effective action. The result is significant since in these theories the entropy of a small black hole, computed using the curvature squared corrections to the effective action, fails to reproduce the statistical entropy associated with elementary string states.

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Cited by 2 Pith papers

Reviewed papers in the Pith corpus that reference this work. Sorted by Pith novelty score. Full citation record

  1. Generating Function of single-centered Black Hole Index in CHL Models

    hep-th 2026-06 unverdicted novelty 6.0 of 10

    Constructs generating function for single-centered black hole index in Z_N CHL models by subtracting two-centered contributions from dyon index using bound state metamorphosis and proves convergence for N=2,3.

  2. Pure D-brane Black Holes: BPS Counting and non-BPS Vacua

    hep-th 2026-01 conditional novelty 5.0 of 10

    The (1,1,1,5) and (1,1,1,6) D2-D2-D2-D6 BPS systems yield 2032 and 5616 vacua, matching U-duality, while the analogous non-BPS system has no zero-energy vacua and six doubly-degenerate low-energy minima.

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