论文标题
边缘变形的schrödinger/偶极子CFT对应关系
Marginally deformed Schrödinger/dipole CFT correspondence
论文作者
论文摘要
我们构建并彻底研究了与Schrödinger对称性的ADS/CFT对应关系的新示例。在重力侧,超级重力解决方案取决于两个参数,并通过一系列TST转换来缩小地变形Schrödinger背景的内部空间。在现场理论方面,我们确定了双场理论,该理论也取决于两个参数。我们找到了一个类似点的字符串解决方案并得出其分散关系。通过使用landau-lifshitz相干态方法在变形参数中复制领先的术语,提供对应关系的非平凡检验。然后,我们计算威尔逊循环,描述了强耦合时的夸克/反夸克电势。当分离长度远小于schrödinger参数时,它表现出狭窄的行为。当分离长度大大远大于schrödinger参数时,行为是共形理论的行为。随后,我们沿着构造背景的某个零用测量线采取penrose极限,并计算骨光谱。基于该范围,我们对原始双重变形背景中的磁备激发的“磁备相关性,分散关系的确切猜测。这为我们提供了双场理论运算符的维度的确切预测。
We construct and thoroughly study a new integrable example of the AdS/CFT correspondence with Schrödinger symmetry. On the gravity side, the supergravity solution depends on two parameters and is obtained by marginally deforming the internal space of the Schrödinger background through a series of TsT transformations. On the field theory side, we identify the dual field theory which also depends on two parameters. We find a point-like string solution and derive its dispersion relation. A non-trivial test of the correspondence is provided by using the Landau-Lifshitz coherent state approach to reproduce the leading, in the deformation parameters, terms of that relation. Then, we calculate the Wilson loop, describing the quark/anti-quark potential at strong coupling. It exhibits confining behaviour when the separation length is much less than the Schrödinger parameter. When the separation length is much greater than the Schrödinger parameter the behaviour is that of a conformal theory. Subsequently, we take the Penrose limit along a certain null geodesic of the constructed background and calculate the bosonic spectrum. Based on that spectrum, we make an educated guess for the exact, in the 't Hooft coupling, dispersion relation of the magnon excitations in the original doubly deformed background. This provides us with an exact prediction for the dimensions of the dual field theory operators.