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About the enhançon mechanism

✍ Scribed by Paolo Merlatti

Book ID
101383703
Publisher
John Wiley and Sons
Year
2002
Tongue
English
Weight
88 KB
Volume
50
Category
Article
ISSN
0015-8208

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✦ Synopsis

I study the enhanc ¸on mechanism for fractional D-branes in conifold and orbifold backgrounds and show how it can resolve the "repulson" singularity of these geometries. In particular I show that the consistency of the excision process requires that the interior space be not empty.

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Topological transitions and enhançon-lik
Topological transitions and enhançon-like geometries in Calabi-Yau compactifications of M-theory
✍ T. Mohaupt 📂 Article 📅 2003 🏛 John Wiley and Sons 🌐 English ⚖ 102 KB

## Abstract We study the impact of topological phase transitions of the internal Calabi‐Yau threefold on the space‐time geometry of five‐dimensional extremal black holes and black strings. For flop transitions and __SU__(2) gauge symmetry enhancement we show that solutions can always be continued a