Understanding Modern Molecular Dynamics: Techniques and Applications
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Recent advances in molecular dynamics methodology have made it possible to study routinely the microscopic details of chemical processes in the condensed phase using high-speed computers. Thus, it is timely and useful to provide a pedagogical treatment of the theoretical and numerical aspects of modern molecular dynamics simulation techniques and to show several applications that illustrate the capability of these approaches. First, the standard Newtonian or Hamiltonian dynamics based method is presented followed by a discussion of theoretical advances related to non-Hamiltonian molecular dynamics. Examples of non-Hamiltonian molecular dynamics schemes capable of generating the canonical and isothermal−isobaric ensemble are analyzed. Next, the novel Liouville operator factorization approach to numerical integration is reviewed. The power and utility of this new technique are contrasted to more basic methods, particularly, in the development of multiple time scale and non-Hamiltonian integrators. Since the...
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