The ${\mathscr P}(\varphi)_2$ Model on the de Sitter Space
  
  
  
      
    João C. A. Barata, Christian D. Jäkel, Jens Mund
  
  
  
  
  
  
                
    
  November 12, 2013  
  
    In 1975 by Figari, Høegh-Krohn and Nappi constructed the ${\mathscr
P}(\varphi)_2$ model on the two-dimensional de Sitter space. Here we complement
their work with a number of new results.
  
  
    
  
  Keywords: 
constructive quantum field theory, modular localization, de Sitter spacetime