The refined topological vertex

被引：341
|
作者：
Iqbal, Amer [1 ]
Kozcaz, Can [2 ]
Vafa, Cumrun [3 ,4 ]
机构：
[1] DHA, Dept Phys, LUMS Sch Sci & Engn, Sector U, Lahore, Pakistan
[2] Univ Washington, Dept Phys, Seattle, WA 98195 USA
[3] Harvard Univ, Jefferson Phys Lab, Cambridge, MA 02138 USA
[4] MIT, Ctr Theoret Phys, Cambridge, MA 02139 USA
来源：
JOURNAL OF HIGH ENERGY PHYSICS | 2009年 / 10期
关键词：
Supersymmetric gauge theory; Topological Strings; STRINGS;
D O I：
10.1088/1126-6708/2009/10/069
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 define a refined topological vertex which depends in addition on a parameter, which physically corresponds to extending the self-dual graviphoton field strength to a more general configuration. Using this refined topological vertex we compute, using geometric engineering, a two-parameter (equivariant) instanton expansion of gauge theories which reproduce the results of Nekrasov. The refined vertex is also expected to be related to Khovanov knot invariants.
引用
收藏
页数：58
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