Exact effective action for the O(N) vector model in the large N limit
We present the Wilsonian effective action as a solution of the exact RG equation for the critical $O(N)$ vector model in the large $N$ limit. Below four dimensions, the exact effective action can be expressed in a closed form as a transcendental function of two leading scaling operators with infinit...
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| Format: | Article |
| Language: | English |
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SciPost
2023-09-01
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| Series: | SciPost Physics |
| Online Access: | https://scipost.org/SciPostPhys.15.3.111 |