Coarse-grained lattice Monte Carlo simulations with continuous interaction potentials.

نویسندگان

  • Xiao Liu
  • Warren D Seider
  • Talid Sinno
چکیده

A coarse-grained lattice Metropolis Monte Carlo (CG-MMC) method is presented for simulating fluid systems described by standard molecular force fields. First, a thermodynamically consistent coarse-grained interaction potential is obtained numerically and automatically from a continuous force field such as Lennard-Jones. The coarse-grained potential then is used to drive CG-MMC simulations of vapor-liquid equilibrium in Lennard-Jones, square-well, and simple point charge water systems. The CG-MMC predicts vapor-liquid phase envelopes, as well as the particle density distributions in both the liquid and vapor phases, in excellent agreement with full-resolution Monte Carlo simulations, at a fraction of the computational cost.

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

Orientation-dependent coarse-grained potentials derived by statistical analysis of molecular structural databases

We present results obtained for anisotropic potentials for protein simulations extracted from the continually growing databases of protein structures. This work is based on the assumption that the detailed information on molecular conformations can be used to derive statistical (a.k.a. ‘knowledge-based’) potentials that can describe on a coarse-grained level the side chain–side chain interactio...

متن کامل

Coarse-grained stochastic processes and Monte Carlo simulations in lattice systems

In this paper we present a new class of coarse-grained stochastic processes and Monte Carlo simulations, derived directly from microscopic lattice systems and describing mesoscopic length scales. As our primary example, we mainly focus on a microscopic spin-flip model for the adsorption and desorption of molecules between a surface adjacent to a gas phase, although a similar analysis carries ov...

متن کامل

Coarse-Grained Kinetic Monte Carlo Simulation of Copper Electrodeposition with Additives

A (2+1)D kinetic Monte Carlo (KMC) code was developed for coarse-grained as well as atomic-scale simulations that require detailed consideration of complex surface-reaction mechanisms associated with electrodeposition of copper in the presence of additives. The physical system chosen for simulation is similar to that used by the microelectronics industry to fabricate on-chip interconnects, wher...

متن کامل

A microscopic lattice model for liquid crystal elastomers

We propose a simple coarse-grained lattice model for liquid crystal elastomers and show, through large scale Monte Carlo simulations, that it can reproduce stressstrain, order, light transmission, and other experiments, including temperature effects. We focus both on homogeneously and inhomogeneously crosslinked materials.

متن کامل

Error Analysis of Coarse-grained Kinetic Monte Carlo Method

Abstract. The coarse-grained Monte Carlo (CGMC) algorithm was originally proposed in the series of works [20, 21, 24]. In this paper we further investigate the approximation properties of the coarse-graining procedure and provide both analytical and numerical evidence that the hierarchy of the coarse models is built in a systematic way that allows for error control in both transient and long-ti...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

عنوان ژورنال:
  • Physical review. E, Statistical, nonlinear, and soft matter physics

دوره 86 2 Pt 2  شماره 

صفحات  -

تاریخ انتشار 2012