| 词条 | IR/UV mixing |
| 释义 | {{Unreferenced|date=December 2008}} In theoretical physics, it is usually possible to organize physical phenomena according to the energy scale or distance scale. The theory of renormalization group is based on this paradigm. The short-distance, ultraviolet (UV) physics does not directly affect qualitative features of the long-distance, infrared (IR) physics, and vice versa. This separation of scales holds in quantum field theory. However, in its generalizations such as noncommutative field theory and quantum gravity - string theory in particular - it is expected that interrelations between UV and IR physics start to emerge. In many cases, these interrelations, UV/IR mixing, may be demonstrated explicitly. Longer, technical description can be found [https://arxiv.org/abs/hepth/9912072 here] {{quantum gravity}}{{DEFAULTSORT:IR UV mixing}} 1 : Quantum gravity |
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