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VOLUME 97 (2013) | ISSUE 11 | PAGE 747
Spectral analysis by the method of consistent constraints Посвящается юбилею Ю.М. Кагана
Abstract
Two major challenges of numeric analytic continuation - restoring the spectral density, s(ω), from corresponding Matsubara correlator, g(τ) - are (i) producing the most smooth/featureless answer for s(ω), without compromising the error bars on g(τ), and (ii) quantifying possible deviations of the produced result from the actual answer. We introduce the method of consistent constraints that solves both problems.