Gauged linear sigma models for noncompact Calabi–Yau varieties

Gauged linear sigma models for noncompact Calabi–Yau varieties
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非紧凑 Calabi-Yau 品种的测量线性 sigma 模型

DOI:
10.1016/j.nuclphysb.2005.01.029
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发表时间:
2004
期刊:
Nuclear Physics
影响因子:
--
通讯作者:
T. Kimura
T. Kimura
中科院分区:
--
文献类型:
--
作者:
T. Kimura

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我们研究射影空间中非紧Calabi-Yau流形的规范线性Sigma模型,该模型被描述为超曲面上的线丛。当Fayet-Iliopoulos参数为正时,该规范理论存在唯一的相,而当Fayet-Iliopoulos参数为负时,则存在两个截然不同的相。我们发现了四个红外极限下的无质量有效理论,它们在Calabi-Yau/Landau-Ginzburg对应和拓扑变化下相互关联。另一方面,在T-对偶理论中,我们得到了两种精确的无质量有效理论:一种是新得到的镜面对偶的Calabi-Yau几何上的sigma模型,另一种是带有负幂项的Landau-Ginzburg理论,这表明SL(2,R)/U(1)上的N=2超共形场理论。我们认为,原始规范线性西格玛模型中的有效理论精确地实现为N=2个Liouville理论与定义明确的Landau-Ginzburg极小模型的耦合。
We study gauged linear sigma models for noncompact Calabi–Yau manifolds described as a line bundle on a hypersurface in a projective space. This gauge theory has a unique phase if the Fayet–Iliopoulos parameter is positive, while there exist two distinct phases if the parameter is negative. We find four massless effective theories in the infrared limit, which are related to each other under the Calabi–Yau/Landau–Ginzburg correspondence and the topology change. In the T-dual theory, on the other hand, we obtain two types of exact massless effective theories: one is the sigma model on a newly obtained Calabi–Yau geometry as a mirror dual, while the other is given by a Landau–Ginzburg theory with a negative power term, indicating N=2 superconformal field theory on SL(2,R)/U(1). We argue that the effective theories in the original gauged linear sigma model are exactly realized as N=2 Liouville theories coupled to well-defined Landau–Ginzburg minimal models.
具有反常尺寸和 Ricci 孤子的共形 Sigma 模型
DOI: --
发表时间: 2005
期刊: Modern Physics Letters A20
影响因子: --
作者:
衛藤稔;五十棲洋一;新田宗土;大橋圭介;坂井典佑;Masato Arai;Hironobu Kihara;Muneto Nitta;Muneto Nitta
通讯作者: Muneto Nitta
DOI: --
发表时间: 2005
期刊: Physics Letters B 607
影响因子: --
作者:
N.Nakayama;K.Sugiyama
通讯作者: K.Sugiyama
DOI: 10.1016/s0550-3213(98)00654-3
发表时间: 1998-12-21
期刊: NUCLEAR PHYSICS B
影响因子: 2.8
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通讯作者: Witten, E