Solving the master equation without kinetic Monte Carlo: Tensor train approximations for a CO oxidation model
Solving the master equation without kinetic Monte Carlo: Tensor train approximations for a CO oxidation model
复制标题
在没有动力学蒙特卡罗的情况下求解主方程:CO 氧化模型的张量列近似
DOI:
10.1016/j.jcp.2016.03.025
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发表时间:
2016
期刊:
影响因子:
--
通讯作者:
C. Schütte
中科院分区:
文献类型:
--
作者:
Patrick Gelß;S. Matera;C. Schütte
In multiscale modeling of heterogeneous catalytic processes, one crucial point is the solution of a Markovian master equation describing the stochastic reaction kinetics. Usually, this is too high-dimensional to be solved with standard numerical techniques and one has to rely on sampling approaches based on the kinetic Monte Carlo method. In this study we break thecurse of dimensionalityfor the direct solution of the Markovian master equation by exploiting the Tensor Train Format for this purpose. The performance of the approach is demonstrated on a first principles based, reduced model for the CO oxidation on the RuO2(110) surface. We investigate the complexity for increasing system size and for various reaction conditions. The advantage over the stochastic simulation approach is illustrated by a problem with increased stiffness.
DOI:
10.1016/j.cpc.2013.12.017
发表时间:
2013-06
期刊:
Comput. Phys. Commun.
影响因子:
--
作者:
S. Dolgov;B. Khoromskij;I. Oseledets;D. Savostyanov
通讯作者:
S. Dolgov;B. Khoromskij;I. Oseledets;D. Savostyanov
影响因子:
6.3
作者:
Hoffmann, Max J.;Matera, Sebastian;Reuter, Karsten
通讯作者:
Reuter, Karsten