کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
6931759 867703 2015 22 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
A generalized parallel replica dynamics
ترجمه فارسی عنوان
یک پویایی تکامل موازی تعمیم یافته
موضوعات مرتبط
مهندسی و علوم پایه مهندسی کامپیوتر نرم افزارهای علوم کامپیوتر
چکیده انگلیسی
Metastability is a common obstacle to performing long molecular dynamics simulations. Many numerical methods have been proposed to overcome it. One method is parallel replica dynamics, which relies on the rapid convergence of the underlying stochastic process to a quasi-stationary distribution. Two requirements for applying parallel replica dynamics are knowledge of the time scale on which the process converges to the quasi-stationary distribution and a mechanism for generating samples from this distribution. By combining a Fleming-Viot particle system with convergence diagnostics to simultaneously identify when the process converges while also generating samples, we can address both points. This variation on the algorithm is illustrated with various numerical examples, including those with entropic barriers and the 2D Lennard-Jones cluster of seven atoms.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Computational Physics - Volume 284, 1 March 2015, Pages 595-616
نویسندگان
, , ,