scholarly journals Form factors of exponential operators and exact wave function renormalization constant in the Bullough-Dodd model

1997 ◽  
Vol 497 (3) ◽  
pp. 589-610 ◽  
Author(s):  
C. Acerbi
Keyword(s):  
Wave Function ◽  
Renormalization Constant ◽  
Form Factors ◽  
Wave Function Renormalization ◽  
Exact Wave Function ◽  
Wave Function Renormalization Constant

scholarly journals Renormalization of the bilocal sine-Gordon model

2019 ◽  
Vol 34 (21) ◽  
pp. 1950117
Author(s):  
I. Steib ◽  
S. Nagy
Keyword(s):  
Group Treatment ◽  
Renormalization Constant ◽  
Wave Number ◽  
Tree Level ◽  
Two Dimensional ◽  
Wave Function Renormalization ◽  
Functional Renormalization Group ◽  
Special Value ◽  
Sine Gordon Model ◽  
Wave Function Renormalization Constant

The functional renormalization group treatment is presented for the two-dimensional sine-Gordon model including a bilocal term in the potential, which contributes to the flow at the tree level. It is shown that the flow of the bilocal term can substitute the evolution of the wave function renormalization constant, since it can recover the Kosterlitz–Thouless type phase transition. The flows can also reveal the connection between the sine-Gordon and the noninteracting Thirring models at a special value of the wave number parameter.

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