Joonho Lee working with Martin Head-Gordon added a libgmbpt-based
Laplace-transformed RI-MP2 implementation for both same-spin and opposite-spin
correlations.
      
         758
      
      
         
           Lee J., Lin L., Head-Gordon M.
 
           J. Chem. Theory Comput.
 
           (2020), 
           16,
           pp. 243.
        
        
            
               Link
            
        
     
   
 To use this feature, one can just add
LAPLACE_TRANSFORM TRUE to the $rem block.