Strong/weak coupling duality from the dual string
Abstract
On compactification to six spacetime dimensions, the fundamental heterotic string admits as a soliton a dual string whose effective worldsheet action couples to the background fields of the dual formulation of six-dimensional supergravity. On further toroidal compactification to four spacetime dimensions, the dual string acquires an O(2, 2; Z) target-space duality. This contains as a subgroup the acton-dilaton SL(2, Z) which corresponds to a strong/weak coupling duality for the fundamental string. The dual string also provides a new non-perturbative mechanism for enhancement of the gauge symmetry.
- Publication:
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Nuclear Physics B
- Pub Date:
- February 1995
- DOI:
- 10.1016/S0550-3213(95)00070-4
- arXiv:
- arXiv:hep-th/9501030
- Bibcode:
- 1995NuPhB.442...47D
- Keywords:
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- High Energy Physics - Theory
- E-Print:
- 23 pages LATEX