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arXiv 1401.7307hep-th
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零多边形威尔逊圈的量子力学

Quantum mechanics of null polygonal Wilson loops

A. V. Belitsky, S. E. Derkachov, A. N Manashov

摘要:

极大超对称规范理论中的散射振幅与零多边形围线上的超威尔逊圈是对偶的。后者的算子乘积展开表明,它们的动力学是由多粒子GKP激发的演变。他们被证明是从一个潜在的开放自旋链的光谱问题。在这项工作中,我们解决了这个模型的帮助下,巴克斯特Q算子和Sklyanin的分离变量的方法。我们提供了一个明确的本征函数和本征值的GKP激发的建设。我们演示了前者如何定义所谓的超惠生圈的多粒子六边形过渡,并证明他们的因式分解的形式建议较早。

英文摘要:

Scattering amplitudes in maximally supersymmetric gauge theory are dual to super-Wilson loops on null polygonal contours. The operator product expansion for the latter revealed that their dynamics is governed by the evolution of multiparticle GKP excitations. They were shown to emerge from the spectral problem of an underlying open spin chain. In this work we solve this model with the help of the Baxter Q-operator and Sklyanin's Separation of Variables methods. We provide an explicit construction for eigenfunctions and eigenvalues of GKP excitations. We demonstrate how the former define the so-called multiparticle hexagon transitions in super-Wison loops and prove their factorized form suggested earlier.

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