arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 1010.5451gr-qchep-thmath-phmath.MP
收藏

圈量子引力的U(N)工具:旋量的回归

U(N) tools for Loop Quantum Gravity: The Return of the Spinor

Enrique F. Borja, Laurent Freidel, Iñaki Garay, Etera R. Livine

摘要:

我们探讨了圈量子引力(LQG)中SU(2)缠绕子的U(N)框架的经典设置,并描述了相应的相空间的旋量与适当的约束。我们展示了它的量子化如何导致回到标准的希尔伯特空间的缠绕状态定义为全纯泛函。然后,我们解释如何胶水这些缠绕状态,以构建自旋网络状态作为旋量相空间上的波函数。特别是,我们翻译通常的循环引力holonomy观测到我们的经典框架。最后,我们提出了如何从作用原理推导出我们的相空间结构,该作用原理诱导自旋网络状态的非平凡动力学。最后,我们明确地应用我们的框架,生活在简单的2-顶点图的状态,并讨论由此产生的哈密顿量的性质。

英文摘要:

We explore the classical setting for the U(N) framework for SU(2) intertwiners for loop quantum gravity (LQG) and describe the corresponding phase space in terms of spinors with appropriate constraints. We show how its quantization leads back to the standard Hilbert space of intertwiner states defined as holomorphic functionals. We then explain how to glue these intertwiners states in order to construct spin network states as wave-functions on the spinor phase space. In particular, we translate the usual loop gravity holonomy observables to our classical framework. Finally, we propose how to derive our phase space structure from an action principle which induces non-trivial dynamics for the spin network states. We conclude by applying explicitly our framework to states living on the simple 2-vertex graph and discuss the properties of the resulting Hamiltonian.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

↑