Fast, approximation-free molecular simulation of the SPC/Fw water model using non-reversible Markov chains

In a world made of atoms, computer simulations of molecular systems such as proteins in water play an enormous role in science. Software packages for molecular simulation have been developed for decades. They all discretize Hamilton’s equations of motion and treat long-range potentials through cutof...

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Egile Nagusiak: Höllmer, P, Maggs, AC, Krauth, W
Formatua: Journal article
Hizkuntza:English
Argitaratua: Nature Research 2024
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author Höllmer, P
Maggs, AC
Krauth, W
author_facet Höllmer, P
Maggs, AC
Krauth, W
author_sort Höllmer, P
collection OXFORD
description In a world made of atoms, computer simulations of molecular systems such as proteins in water play an enormous role in science. Software packages for molecular simulation have been developed for decades. They all discretize Hamilton’s equations of motion and treat long-range potentials through cutoffs or discretization of reciprocal space. This introduces severe approximations and artifacts that must be controlled algorithmically. Here, we bring to fruition a paradigm for molecular simulation that relies on modern concepts in statistics to explore the thermodynamic equilibrium with an exact and efficient non-reversible Markov process. It is free of all discretizations, approximations, and cutoffs. We explicitly demonstrate that this approach reaches a break-even point with traditional molecular simulation performed at high precision, but without any of its approximations. We stress the potential of our paradigm for crucial applications in biophysics and other fields, and as a practical approach to molecular simulation. We set out a strategy to reach our goal of rigorous molecular simulation.
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spelling oxford-uuid:52ccc0b1-aabb-4e8b-a714-2e6bd0de0f172024-07-17T20:09:45ZFast, approximation-free molecular simulation of the SPC/Fw water model using non-reversible Markov chainsJournal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:52ccc0b1-aabb-4e8b-a714-2e6bd0de0f17EnglishJisc Publications RouterNature Research2024Höllmer, PMaggs, ACKrauth, WIn a world made of atoms, computer simulations of molecular systems such as proteins in water play an enormous role in science. Software packages for molecular simulation have been developed for decades. They all discretize Hamilton’s equations of motion and treat long-range potentials through cutoffs or discretization of reciprocal space. This introduces severe approximations and artifacts that must be controlled algorithmically. Here, we bring to fruition a paradigm for molecular simulation that relies on modern concepts in statistics to explore the thermodynamic equilibrium with an exact and efficient non-reversible Markov process. It is free of all discretizations, approximations, and cutoffs. We explicitly demonstrate that this approach reaches a break-even point with traditional molecular simulation performed at high precision, but without any of its approximations. We stress the potential of our paradigm for crucial applications in biophysics and other fields, and as a practical approach to molecular simulation. We set out a strategy to reach our goal of rigorous molecular simulation.
spellingShingle Höllmer, P
Maggs, AC
Krauth, W
Fast, approximation-free molecular simulation of the SPC/Fw water model using non-reversible Markov chains
title Fast, approximation-free molecular simulation of the SPC/Fw water model using non-reversible Markov chains
title_full Fast, approximation-free molecular simulation of the SPC/Fw water model using non-reversible Markov chains
title_fullStr Fast, approximation-free molecular simulation of the SPC/Fw water model using non-reversible Markov chains
title_full_unstemmed Fast, approximation-free molecular simulation of the SPC/Fw water model using non-reversible Markov chains
title_short Fast, approximation-free molecular simulation of the SPC/Fw water model using non-reversible Markov chains
title_sort fast approximation free molecular simulation of the spc fw water model using non reversible markov chains
work_keys_str_mv AT hollmerp fastapproximationfreemolecularsimulationofthespcfwwatermodelusingnonreversiblemarkovchains
AT maggsac fastapproximationfreemolecularsimulationofthespcfwwatermodelusingnonreversiblemarkovchains
AT krauthw fastapproximationfreemolecularsimulationofthespcfwwatermodelusingnonreversiblemarkovchains