Adding flavor to the gravity dual of non-commutative gauge theories
Adding flavor to the gravity dual of non-commutative gauge theories
复制标题
为非交换规范理论的引力对偶增添趣味
DOI：
10.1088/1126-6708/2005/08/017
复制
发表时间：
2005
影响因子：
5.4
通讯作者：
A. Ramallo
中科院分区：
文献类型：
--
作者：
D. Areán;A. Paredes;A. Ramallo
研究了在极大超对称规范理论的非对易变形超引力对偶中增加味自由度的问题。通过在探测近似下考虑D 7味膜并研究它们的涨落，我们提取了标量和矢量介子的谱作为非对易性的函数。我们发现，当非对易参数很大时，谱与对易理论中的谱相等，而当非对易参数为某些中间值时，某些模从离散谱中消失.我们还研究了连接在D 7-膜上的旋转开弦的半经典动力学，它对应于具有大自旋的介子。在非对易性的作用下，开弦会倾斜。然而，在小（大）的距离，它们显示出与交换理论中相同的类雷吉（库仑）行为。我们还考虑了D5味膜的非交换变形= 1超对称Maldacena-Nunez背景。
We study the addition of flavor degrees of freedom to the supergravity dual of the non-commutative deformation of the maximally supersymmetric gauge theories. By considering D7 flavor branes in the probe approximation and studying their fluctuations we extract the spectrum of scalar and vector mesons as a function of the non-commutativity. We find that the spectrum for very large non-commutative parameter is equal to the one in the commutative theory, while for some intermediate values of the non-commutativity some of the modes disappear from the discrete spectrum. We also study the semiclassical dynamics of rotating open strings attached to the D7-brane, which correspond to mesons with large spin. Under the effect of the non-commutativity the open strings get tilted. However, at small(large) distances they display the same Regge-like (Coulombic) behaviour as in the commutative theory. We also consider the addition of D5-flavor branes to the non-commutative deformation of the = 1 supersymmetric Maldacena-Nunez background.