Holonomy Spin Foam Models: Definition and Coarse Graining
Holonomy Spin Foam Models: Definition and Coarse Graining
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Holonomy 旋转泡沫模型:定义和粗粒化
DOI:
10.1103/physrevd.87.044048
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发表时间:
2012
影响因子:
5
通讯作者:
W. Kamiński
中科院分区:
文献类型:
--
作者:
Benjamin Bahr;B. Dittrich;F. Hellmann;W. Kamiński
We propose a new holonomy formulation for spin foams, which naturally extends the theory space of lattice gauge theories. This allows current spin foam models to be defined on arbitrary 2-complexes as well as to generalize current spin foam models to arbitrary, in particular, finite groups. The similarity with standard lattice gauge theories allows us to apply standard coarse graining methods, which for finite groups can now be easily considered numerically. We will summarize other holonomy and spin network formulations of spin foams and group field theories and explain how the different representations arise through variable transformations in the partition function. A companion paper will provide a description of boundary Hilbert spaces as well as a canonical dynamic encoded in transfer operators.
影响因子:
2.8
作者:
Barrett J
通讯作者:
Barrett J