Compressing the two-particle green’s function using wavelets: theory and application to the hubbard atom

HIGHLIGHTS

• What: The authors aim at a compression method that is agnostic to the underlying representation of the data but is still able to yield an effective and compact representation. The authors show the versatility and efficiency of the wavelet compression to address the ever-growing demand for more compact and resource-efficient data representations in the many-body theory of interacting systems. To prove the efficiency of the wavelet decomposition in producing compact representations of many-body quantities, such as generalized susceptibilities and the self-energy of an interacting fermionic system, the authors focus the attention on . . .
  

   

  

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