Second order gradient ascent pulse engineering
Second order gradient ascent pulse engineering
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DOI:
10.1016/j.jmr.2011.07.023
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发表时间:
2011-10-01
影响因子:
2.2
通讯作者:
Kuprov, Ilya
中科院分区:
文献类型:
--
作者:
de Fouquieres, P.;Schirmer, S. G.;Kuprov, Ilya
We report some improvements to the gradient ascent pulse engineering (GRAPE) algorithm for optimal control of spin ensembles and other quantum systems. These include more accurate gradients, convergence acceleration using the Broyden-Fletcher-Goldfarb-Shanno (BFGS) quasi-Newton algorithm as well as faster control derivative calculation algorithms. In all test systems, the wall clock time and the convergence rates show a considerable improvement over the approximate gradient ascent. (C) 2011 Elsevier Inc. All rights reserved.