I am definitely not an expert but it seems people are working on it:

  
      github.com/pytorch/pytorch
  
  
    
  
	  
  

  
    
      Integrating complex tensors 11
    

    
      
        opened 
        
          
        
        Feb 15, 2017
      
      


      
        
          
          PhilippPelz
        
      
    
  



  New description from @ezyang:
Work is in progress at https://github.com/Roger-luo/pytorch-complex
Organizational principles
Complex tensor support is important to PyTorch, and we will accept patches...



    feature
    module: complex
    triaged