Influx
发表于 2025-3-25 04:38:34
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伪证
发表于 2025-3-25 09:38:39
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欢乐东方
发表于 2025-3-25 15:23:20
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衰老
发表于 2025-3-25 16:07:56
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Bernstein-test
发表于 2025-3-25 23:04:53
Christoph Burmann,Julia LaunspachThe momentum space cutoff we have been using is the most intuitive form of regularization, but it is not the most efficient one. For a scalar field theory which does not have any gauge symmetries to preserve it is fine. But in a gauge theory, the momentum space cutoff is bad news.
小步走路
发表于 2025-3-26 01:00:22
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FIS
发表于 2025-3-26 05:30:35
B S Johnson and Post-War LiteratureSometimes a symmetry which seems to be present in a theory at the classical level can be spoiled by quantum (loop) effects. We have already seen such an example without knowing it.
Hyperplasia
发表于 2025-3-26 09:28:29
B. Traven – Die unbekannten JahreWe have dealt with the simplest kind of gauge theory, which is based on the gauge symmetry .(1). It is an Abelian group because any two .(1) transformations commute with each other:
Irksome
发表于 2025-3-26 14:54:56
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无能性
发表于 2025-3-26 17:16:41
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