Efficient simulation protocol for determining the density of states: Combination of replica-exchange Wang-Landau method and multicanonical replica-exchange method

被引:6
|
作者
Hayashi, Takuya [1 ]
Okamoto, Yuko [1 ,2 ,3 ,4 ,5 ]
机构
[1] Nagoya Univ, Grad Sch Sci, Dept Phys, Nagoya, Aichi 4648602, Japan
[2] Nagoya Univ, Struct Biol Res Ctr, Grad Sch Sci, Nagoya, Aichi 4648602, Japan
[3] Nagoya Univ, Ctr Computat Sci, Grad Sch Engn, Nagoya, Aichi 4648603, Japan
[4] Nagoya Univ, Informat Technol Ctr, Nagoya, Aichi 4648601, Japan
[5] JST CREST, Nagoya, Aichi 4648602, Japan
关键词
MONTE-CARLO SIMULATIONS; TEMPERATURE MOLECULAR-DYNAMICS; FREE-ENERGY; ENSEMBLE; ALGORITHM; PEPTIDES; ENTROPY; SYSTEMS; ICE;
D O I
10.1103/PhysRevE.100.043304
中图分类号
O35 [流体力学]; O53 [等离子体物理学];
学科分类号
070204 ; 080103 ; 080704 ;
摘要
By combining two generalized-ensemble algorithms, the replica-exchange Wang-Landau (REWL) method and the multicanonical replica-exchange method (MUCAREM), we propose an effective simulation protocol to determine the density of states with high accuracy. The new protocol is referred to as REWL-MUCAREM, and REWL is first performed and then MUCAREM is performed. In order to verify the effectiveness of our protocol, we performed simulations of a square-lattice Ising model using the three methods, namely REWL, MUCAREM, and REWL-MUCAREM. The results showed that the density of states obtained by REWL-MUCAREM is more accurate than that is estimated by the two methods separately.
引用
收藏
页数:8
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