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MCMC~2: A Monte Carlo code for multiply-charged clusters

机译:MCMC〜2:用于多电荷簇的蒙特卡洛代码

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We have implemented a Monte Carlo code in reduced units providing structural and thermodynamical properties of multiply-charged Lennard-Jones droplets AN n+, composed of N individual particles among which n are charged particles, each one carrying a charge qi (qi can be positive or negative). The cluster has a total net charge Q=i=1,nqi (Q > 0 or Q < 0). The interactions between particles are modelled by a sum of pairwise Lennard-Jones potentials and electrostatic terms, including polarisation. The cluster statistical properties can be obtained from (i) parallel Monte Carlo simulations whose replicas are run at different temperatures, from configurations with same number of charged particles n and same individual charges qi (Parallel Tempering Monte Carlo), or (ii) parallel Monte Carlo simulations whose replicas are run at the same temperature but from configurations with different qi or n (Parallel Charging Monte Carlo). The code provides statistical data (evaporation rates, acceptance/rejection rates, etc.), energetic data (mean energies, heat capacities, etc.), and structural data (radial and angular distributions), for comprehensive analyses. A complete manual of the code is provided.
机译:我们已在减少的单位中实现了蒙特卡洛代码,以提供多电荷Lennard-Jones液滴AN n +的结构和热力学性质,该液滴由N个单个粒子组成,其中n个是带电粒子,每个粒子带有电荷qi(qi可以为正或负)。群集的总净电荷Q = i = 1,nqi(Q> 0或Q <0)。粒子之间的相互作用通过成对的Lennard-Jones势和静电项(包括极化)的总和来建模。可以从(i)并行蒙特卡洛模拟获得副本的群集统计属性,这些模拟的副本在不同温度下运行,可以从具有相同数量的带电粒子n和相同的单个电荷qi(平行回火蒙特卡洛)的配置中获得,或(ii)并行蒙特卡洛卡洛模拟,其副本在相同温度下运行,但使用具有不同qi或n的配置(并行充电蒙特卡洛)。该代码提供了统计数据(蒸发率,接受/拒绝率等),高能数据(平均能量,热容量等)和结构数据(径向和角度分布),以进行综合分析。提供了代码的完整手册。

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