Yang-Baxter $sigma$-models, conformal twists & noncommutative Yang-Mills
Yang-Baxter $sigma$-models, conformal twists & noncommutative Yang-Mills
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Yang-Baxter $sigma$-模型,保角扭曲
DOI:
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发表时间:
2017
期刊:
影响因子:
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通讯作者:
Kentaroh Yoshida
中科院分区:
文献类型:
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作者:
T. Araujo;I. Bakhmatov;E. Colgáin;J. Sakamoto;M. Sheikh;Kentaroh Yoshida
The Yang-Baxter $sigma$-model is a systematic way to generate integrable deformations of AdS$_5 imes$S$^5$. We recast the deformations as seen by open strings, where the metric is undeformed AdS$_5 imes$S$^5$ with constant string coupling, and all information about the deformation is encoded in the noncommutative (NC) parameter $Theta$. We identify the deformations of AdS$_5$ as twists of the conformal algebra, thus explaining the noncommutativity. We show that the unimodularity conditon on $r$-matrices for supergravity solutions translates into $Theta$ being divergence-free. Integrability of the $sigma$-model for unimodular $r$-matrices implies the existence and planar integrability of the dual NC gauge theory.