Integrable Inhomogeneous Spin Chains in Generalized Lunin-Maldacena Backgrounds
Matheus Jatkoske Lazo
备注:
Change in references. Talk given at II Latin American Workshop on High Energy Phenomenology and published in Brazilian Journal of Physics, vol. 38, no. 3B, September, 2008
We obtain through a Matrix Product Ansatz the exact solution of the most general inhomogeneous spin chain with nearest neighbor interaction and with $U(1)^2$ and $U(1)^3$ symmetries. These models are related to the one loop mixing matrix of the Leigh-Strassler deformed N=4 SYM theory, dual to type IIB string theory in the generalized Lunin-Maldacena backgrounds, in the sectors of two and three kinds of fields, respectively. The solutions presented here generalizes the results obtained by the author in a previous work for homogeneous spins chains with $U(1)^N$ symmetries in the sectors of N=2 and N=3.
Lunin-Maldacena Deformations With Three Parameters
我们研究的解决方案产生的对称性,卢宁和Maldacena产生的重力β变形的某些场论。我们确定了O(2,2,R)矩阵,它作用于背景矩阵E=g+B,其中g和B分别是未变形背景的度量和B-场。这简化了计算,并使变形背景的某些特征更加透明。我们还发现了Sasaki-Einstein流形T^{1,1}和Y^{p,q}的一个新的三参数形变。根据最近关于AdS_5 \times S ^5的三参数形变的文献,人们可以预期我们的新解应该对应于相关对偶场论的非超对称边缘形变。
Institut Polytechnique de Paris(巴黎理工学院);Laboratoire de Physique de l’École Normale Supérieure, CNRS, Université PSL, Sorbonne Universités(巴黎高等师范学院物理实验室,法国国家科学研究中心,巴黎文理研究大学,索邦大学)
Laboratoire de Physique de l’École Normale Supérieure, CNRS, Université PSL, Sorbonne Universités(巴黎高等师范学院物理实验室,法国国家科学研究中心,巴黎文理研究大学,索邦大学);School of Mathematics, Trinity College Dublin(都柏林三一学院数学学院);Perimeter Institute for Theoretical Physics(理论物理前沿研究所);Department of Physics and Astronomy, University of Waterloo(滑铁卢大学物理与天文系)