Canonical tensor product subfactors
  
  
  
      
    Karl-Henning Rehren
  
  
  
  
  
  
                
    
  November 19, 1999  
  
    Canonical tensor product subfactors (CTPS's) describe, among other things, the embedding of chiral observables in two-dimensional conformal quantum field theories. A new class of CTPS's is constructed some of which are associated with certain modular invariants, thereby establishing the expected existence of the corresponding two-dimensional theories.
  
  
    
  
  Keywords: 
subfactors