Convergence of compact ADI method for solving linear Schrödinger equations |
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| Authors: | Hong‐Lin Liao Zhi‐Zhong Sun Han‐Sheng Shi Ting‐Chun Wang |
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| Affiliation: | 1. Department of Mathematics, Southeast University, Nanjing, 210096, People's Republic of China;2. Department of Applied Mathematics and Physics, Institute of Sciences, PLAUST, Nanjing, 211101, People's Republic of China;3. College of Mathematics and Physics, Nanjing University of Information Science and Technology, Nanjing, 210044, People's Republic of China |
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| Abstract: | A compact ADI scheme of second‐order in time and fourth‐order in space is proposed for solving linear Schrödinger equations with periodic boundary conditions. By using the recently suggested discrete energy method, it is shown that the stable compact ADI method is unconditionally convergent in the maximum norm. Numerical experiments, including the comparisons with the second‐order ADI scheme and the time‐splitting Fourier pseudospectral method, are presented to support the theoretical results and show the effectiveness of our method. © 2011 Wiley Periodicals, Inc. Numer Methods Partial Differential Eq 2012 |
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| Keywords: | compact ADI scheme convergence and stability discrete energy method linear Schrö dinger equation |
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