Scaling dimension

（重定向自Anomalous dimension）

In theoretical physics, scaling dimension, or simply dimension, of a local operator in a quantum field theory characterizes rescaling properties of the operator under spacetime dilations $x\to \lambda x$ . If the quantum field theory is scale invariant, scaling dimensions of operators are fixed numbers, otherwise they are functions depending on the distance scale.

单词	Anomalous dimension
释义	Anomalous dimension 英语百科 Scaling dimension （重定向自Anomalous dimension） In theoretical physics, scaling dimension, or simply dimension, of a local operator in a quantum field theory characterizes rescaling properties of the operator under spacetime dilations $x\to \lambda x$ . If the quantum field theory is scale invariant, scaling dimensions of operators are fixed numbers, otherwise they are functions depending on the distance scale.
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