Analyticity of critical exponents of the $O(N)$ models from nonperturbative renormalization
We employ the functional renormalization group framework at the second order in the derivative expansion to study the $O(N)$ models continuously varying the number of field components $N$ and the spatial dimensionality $d$. We in particular address the Cardy-Hamber prediction concerning nonanalytic...
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| Format: | Article |
| Language: | English |
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SciPost
2021-06-01
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| Series: | SciPost Physics |
| Online Access: | https://scipost.org/SciPostPhys.10.6.134 |