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IR/UV mixing

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Title: IR/UV mixing  
Author: World Heritage Encyclopedia
Language: English
Subject: Quantum gravity, Bousso's holographic bound, Causal patch, Bunch–Davies vacuum, FRW/CFT duality
Collection: Quantum Gravity
Publisher: World Heritage Encyclopedia

IR/UV mixing

In 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 here

Uv is a deadly radar
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