Impurity Solvers

 

 

 

 

 

 

 

• Perturbation expansion in Coulomb interaction
  
• Perturbation expansion in the hybridization strength
  
• Decoupling schemes (Hubbard I)
  
• Multi-orbital QMC Hilbert transform DMFT
  
• QMC impurity solver (LISA)
  
• Mean-field slave boson approach
  
• Interpolative schemes