scholarly journals Phase Diagram in the Large N Limit of the Annealed N-Vector Model with Gaussian Random Bonds and Its Relation to the RPN-1 Model

1982 ◽  
Vol 68 (6) ◽  
pp. 2176-2179 ◽  
Author(s):  
M. Oku
Keyword(s):  
Large N ◽  
2021 ◽  
pp. 115499
Author(s):  
Junichi Haruna ◽  
Katsuta Sakai ◽  
Kentaroh Yoshida

2021 ◽  
Vol 11 (3) ◽  
Author(s):  
Lorenzo Di Pietro ◽  
Edoardo Lauria ◽  
Pierluigi Niro

We consider a 4d scalar field coupled to large NN free or critical O(N)O(N) vector models, either bosonic or fermionic, on a 3d boundary. We compute the \betaβ function of the classically marginal bulk/boundary interaction at the first non-trivial order in the large NN expansion and exactly in the coupling. Starting with the free (critical) vector model at weak coupling, we find a fixed point at infinite coupling in which the boundary theory is the critical (free) vector model and the bulk decouples. We show that a strong/weak duality relates one description of the renormalization group flow to another one in which the free and the critical vector models are exchanged. We then consider the theory with an additional Maxwell field in the bulk, which also gives decoupling limits with gauged vector models on the boundary.


1991 ◽  
Vol 06 (33) ◽  
pp. 3091-3097 ◽  
Author(s):  
S. PRATIK KHASTGIR ◽  
ALOK KUMAR ◽  
JNANADEVA MAHARANA

Supersymmetric one-dimensional O(N) vector model is solved in large-N limit. It is shown that the model exhibits a double scaling behavior at a critical value of the coupling constant. Connection of this model with the bosonic vector models is discussed.


1996 ◽  
Vol 470 (3) ◽  
pp. 369-395 ◽  
Author(s):  
Galit Eyal ◽  
Moshe Moshe ◽  
Shinsuke Nishigaki ◽  
Jean Zinn-Justin

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