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arXiv · 1304.5198

Spectral Analysis by the Method of Consistent Constraints

Nikolay Prokof'ev·Boris Svistunov
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Abstract

Two major challenges of numeric analytic continuation---restoring the spectral density, $s(\omega)$, from the corresponding Matsubara correlator, $g(\tau)$---are (i) producing the most smooth/featureless answer for $s(\omega)$ without compromising the error bars on $g(\tau)$ and (ii) quantifying possible deviations of the produced result from the actual answer. We introduce the method of consistent constraints that solves both problems.

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BibTeXRIS

Nikolay Prokof'ev, Boris Svistunov. 2013-04-18. Spectral Analysis by the Method of Consistent Constraints. https://doi.org/10.1134/s002136401311009x

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