Genetic Algorithm Was Used To Study Glass Transition Of Matter

We studied the relationship of the potential energy curve and glass forming abilityby using genetic algorithm simulation.(1) The potential energy curve of strong liquid AB2and BMLJ liquid existsobvious difference. Along with the increase of genetic algebra, the potential energy ofAB2clusters decline more slowly than BMLJ liquid, and there are multiple platform,which is corresponding to multiple metastable, which have stronger glass formingability. The potential energy curve of strong liquid AB2composed of30atoms and AB2composed of24atoms are roughly same, but the potential energy minima of the clustercomposed of less atomic number is lower, and it can more quickly find the optimalconfiguration. The potential energy of BMLJ liquid composed of15,20,50atomschange in roughly the same, The more atomic number, the lower the potential energy.The clusters composed of less atomic number can be reduced to the minimum energymore quickly.(2)The potential energy curve of BMLJ liquid composed of30atoms (atomic ratioof1:1,1:2,1:4)is roughly same, the minimum energy of clusters (atomic ratio of1:1,1:2) is more lower, and the clusters(the atomic ratio of1:4) more easily fall into aminimum energy, which has stronger glass forming ability. The potential energychanges of NTW liquid composed of30atoms(atomic ratio of1:1,1:2,1:4) areroughly the same, and the minimum potential energy of clusters (atomic ratio of1:4)istaller than the clusters (atomic ratio of1:1,1:2). The optimal configuration of NTWliquid (atomic ratio of1:2) is tetrahedron structure in space, and the optimalconfiguration of BMLJ liquid (atomic ratio of1:4)is pentagon defects in space.