Monopoles in string theory
Abstract
A realization of E_{n+1} monopoles in string theory is given. The NS five brane stuck to an Orientifold eight plane is identified as the 't HooftPolyakov monopole. Correspondingly, the moduli space of many such NS branes is identified with the moduli space of SU(2) monopoles. These monopoles transform in the spinor representation of an SO(2n) gauge group when n D8 branes are stacked upon the orientifold plane. This leads to a realization of E_{n+1} monopole moduli spaces. Charge conservation leads to a dynamical effect which does not allow the NS branes to leave the orientifold plane. This suggests that the monopole moduli space is smooth for n < 8. Odd n > 8 obeys a similar condition. Using a chain of dualities, we also connect our system to an heterotic background with KaluzaKlein monopoles.
 Publication:

Journal of High Energy Physics
 Pub Date:
 December 1999
 DOI:
 10.1088/11266708/1999/12/014
 arXiv:
 arXiv:hepth/9911113
 Bibcode:
 1999JHEP...12..014H
 Keywords:

 High Energy Physics  Theory
 EPrint:
 26 pages, 3 figures