Strong coupling singularities and nonAbelian gauge symmetries in N=2 string theory

Klemm, Albrecht; Mayr, Peter

doi:10.1016/0550-3213(96)00108-3

Strong coupling singularities and nonAbelian gauge symmetries in N=2 string theory

Albrecht Klemm
(
- CERN
)
,
Peter Mayr
(
- CERN
)

Jan, 1996

16 pages

Published in:

Nucl.Phys.B 469 (1996) 37-50

e-Print:

hep-th/9601014 [hep-th]

DOI:

10.1016/0550-3213(96)00108-3

Report number:

CERN-TH-96-02

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Abstract:

We study a class of extremal transitions between topological distinct Calabi--Yau manifolds which have an interpretation in terms of the special massless states of a type II string compactification. In those cases where a dual heterotic description exists the exceptional massless states are due to genuine strong (string-) coupling effects. A new feature is the appearance of enhanced non-abelian gauge symmetries in the exact nonperturbative theory.

Note:

16 pages, harvmac Report-no: CERN-TH-96-02

string model: heterotic
compactification
field theory: Calabi-Yau
approximation: strong coupling
strong coupling: approximation
moduli space
geometry: algebra
symmetry: gauge
mass spectrum

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