TY - JOUR

T1 - Counting dyons in four-dimensional N = 4 string theory

AU - Verlinde, Herman

N1 - Funding Information:
ACKNOWLEDGEMENTS I thank R. Dijkgraaf and E. Verlinde for the pleasant collaboration on this project. This research is partly supported by a Pionier Fellowship of NWO, a Fellowship of the Royal Dutch Academy of Sciences (K.N.A.W.), the Packard Foundation and the A.P. Sloan Foundation.

PY - 1997/9

Y1 - 1997/9

N2 - We present an index formula that counts the number of dyonic BPS particles of given charges (qe, qm) in four dimensional N = 4 string theory. The formula is invariant under the duality group, and its asymptotic growth matches with the Bekenstein-Hawking entropy. We give a derivation of this result in terms of the type II fivebrane.

AB - We present an index formula that counts the number of dyonic BPS particles of given charges (qe, qm) in four dimensional N = 4 string theory. The formula is invariant under the duality group, and its asymptotic growth matches with the Bekenstein-Hawking entropy. We give a derivation of this result in terms of the type II fivebrane.

UR - http://www.scopus.com/inward/record.url?scp=0031232149&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0031232149&partnerID=8YFLogxK

U2 - 10.1016/S0920-5632(97)00419-2

DO - 10.1016/S0920-5632(97)00419-2

M3 - Article

AN - SCOPUS:0031232149

SN - 0920-5632

VL - 58

SP - 141

EP - 148

JO - Nuclear Physics B - Proceedings Supplements

JF - Nuclear Physics B - Proceedings Supplements

IS - 1-3

ER -