Second order gradient ascent pulse engineering

作者：de Fouquieres P; Schirmer S G^*; Glaser S J; Kuprov Ilya

来源：Journal of Magnetic Resonance, 2011, 212(2): 412-417.

DOI：10.1016/j.jmr.2011.07.023

• Optimal control
• GRAPE
• BFGS

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.

• 出版日期2011-10