Skip to main content
Search type Search syntax
Tags [tag]
Exact "words here"
Author user:1234
user:me (yours)
Score score:3 (3+)
score:0 (none)
Answers answers:3 (3+)
answers:0 (none)
isaccepted:yes
hasaccepted:no
inquestion:1234
Views views:250
Code code:"if (foo != bar)"
Sections title:apples
body:"apples oranges"
URL url:"*.example.com"
Saves in:saves
Status closed:yes
duplicate:no
migrated:no
wiki:no
Types is:question
is:answer
Exclude -[tag]
-apples
For more details on advanced search visit our help page
Results tagged with
Search options not deleted user 285941
0 votes
0 answers
120 views

Resources on calculation of beta function for $\mathrm{O}(N)$ model

Is there any useful introductory material about the calculation of the beta function in $\phi^4$ scalar theory and $O(N)$ model? I would also like to generalize this to the large-$N$ limit.
3 votes
0 answers
181 views

Beta function in the large $N$ limit

I am currently studying Quantum Field Theory in the large $N$ limit (https://arxiv.org/abs/hep-th/9601080) and I am trying to understand how to calculate RG $β$-function $N$ β-function" /> How can one …
stavrosT.'s user avatar