Key points are not available for this paper at this time.
A method for analytic continuation of quantum Monte Carlo data is presented. The spectrum A () is parametrized as a sum of functions, the weights A₈ of which are sampled according to a distribution p (A) (-^2/). It is argued that the calculated entropy S provides a criterion for determining the corresponding to the ``best'' averaged spectrum. The appearance of spurious structure is signaled by a sharp drop in 〈S () 〉, which in test cases is preceded by a local maximum. Results for the dynamic spin structure factor of a 16-site Heisenberg chain obtained at this maximum are in better agreement with exact results than ``classic'' maximum-entropy results.
Anders W. Sandvik (Fri,) studied this question.
Synapse has enriched 5 closely related papers on similar clinical questions. Consider them for comparative context: