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arXiv 0801.0129hep-thmath-phmath.DGmath.MP
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三维格点的量子几何

Quantum geometry of 3-dimensional lattices

Vladimir V. Bazhanov, Vladimir V. Mangazeev, Sergey M. Sergeev

摘要:

我们研究了3维(3D)圆形四边形晶格-晶格的面是平面四边形内接成一个圆的角度之间的几何一致性关系。我们表明,这些关系产生典型的转换一个显着的“超本地”泊松括号代数定义的离散二维表面组成的圆形四边形。这种结构的量子化导致了四面体方程(杨-巴克斯特方程的3D模拟)的新解。这些解产生了杨-巴克斯特方程的无穷多个非平凡解,也定义了统计力学和量子场论的可积3D模型。后者可以被认为是描述晶格几何的量子涨落。3D圆格子的经典几何结构作为一种稳定的结构出现,在准经典极限中对配分函数有主要贡献。

英文摘要:

We study geometric consistency relations between angles on 3-dimensional (3D) circular quadrilateral lattices -- lattices whose faces are planar quadrilaterals inscribable into a circle. We show that these relations generate canonical transformations of a remarkable ``ultra-local'' Poisson bracket algebra defined on discrete 2D surfaces consisting of circular quadrilaterals. Quantization of this structure leads to new solutions of the tetrahedron equation (the 3D analog of the Yang-Baxter equation). These solutions generate an infinite number of non-trivial solutions of the Yang-Baxter equation and also define integrable 3D models of statistical mechanics and quantum field theory. The latter can be thought of as describing quantum fluctuations of lattice geometry. The classical geometry of the 3D circular lattices arises as a stationary configuration giving the leading contribution to the partition function in the quasi-classical limit.

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