Minimal pole representation and analytic continuation of matrix-valued correlation functions
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DOI: 10.1103/physrevb.110.235131
Abstract: We present a minimal pole method for analytically continuing matrix-valued imaginary frequency correlation functions to the real axis, enabling precise access to off-diagonal elements and thus improving the interpretation of self-energies and susceptibilities in quantum… read more here.
Keywords: matrix; pole representation; minimal pole; correlation functions ... See more keywords