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Robust Analytic Continuation of Green's functions

Projection, Estimation and Semidefinite relaxation (PES)

Reference: https://journals.aps.org/prb/abstract/10.1103/PhysRevB.107.075151

Requirement of code:

  1. cvx: http://cvxr.com/cvx/download/
  2. Chebfun: https://www.chebfun.org/download/

Our code could deal with both clean and noisy Matsubara data, both scalar and matrix data. See the references for detailed choices.

There are three folders.

Folder 1: clean (noiseless) case: ES method for noiseless fermionic Green's function.

   matlab>>> test_noiseless

Folder 2: noisy case: PES method for noisy fermionic Green's function.

   matlab>>> test_noisy1
   matlab>>> test_noisy2
   matlab>>> test_noisy3

Folder 3: bosonic: ES/PES method for Bosonic case.

   matlab>>> test_bosonic

For more information and questions, please contact Zhen Huang [email protected]

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