Colliding singularities in F-theory and phase transitions

被引:53
作者
Bershadsky, M
Johansen, A
机构
[1] Lyman Laboratory of Physics, Harvard University, Cambridge
基金
美国国家科学基金会;
关键词
F-theory; colliding singularities; tensionless strings;
D O I
10.1016/S0550-3213(97)00027-8
中图分类号
O412 [相对论、场论]; O572.2 [粒子物理学];
学科分类号
摘要
We study F-theory on elliptic Calatbi-Yau three-folds near colliding singularities. We demonstrate that resolutions of those singularities generically correspond to transitions to phases characterized by new tensor multiplets and enhanced gauge symmetry, These are governed by the dynamics of tensionless strings. We also find new transition points which are associated with several small instantons simultaneously shrinking to zero size. (C) 1997 Elsevier Science B.V.
引用
收藏
页码:122 / 138
页数:17
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