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arXiv 1010.2133hep-thmath-phmath.MP
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Nappi-Witten模型的约束结构和Hamilton处理

Constraint structure and Hamiltonian treatment of Nappi-Witten model

Mehdi Dehghani, Ahmad Shirzad

摘要:

研究了Nappi-Witten模型(基于非半单规范群的WZW作用量)的哈密顿量分析,通过正则量子化发现了含时的非对易性。我们的程序是基于两个部分的模型的约束分析。第一类分析用于规范固定的原始模型,其次是第二类分析,其中的边界条件被视为狄拉克约束。我们发现减少相空间施加我们的第二类约束的变量在一个扩展的傅立叶空间。

英文摘要:

We investigate the Hamiltonian analysis of Nappi-Witten model (WZW action based on non semi simple gauge group) and find a time dependent non-commutativity by canonical quantization. Our procedure is based on constraint analysis of the model in two parts. A first class analysis is used for gauge fixing the original model following by a second class analysis in which the boundary condition are treated as Dirac constraints. We find the reduced phase space by imposing our second class constraints on the variables in an extended Fourier space.

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