Glass quantization of the Gaussian core model

被引:5
|
作者
Bomont, Jean-Marc [1 ]
Likos, Christos N. [2 ]
Hansen, Jean-Pierre [3 ,4 ]
机构
[1] Univ Lorraine, LCP A2MC, UR 3469, 1 Blvd Francois Arago, F-57078 Metz, France
[2] Univ Vienna, Fac Phys, Boltzmanngasse 5, A-1090 Vienna, Austria
[3] Sorbonne Univ, PHENIX, F-75005 Paris, France
[4] Univ Cambridge, Dept Chem, Cambridge CB2 1EW, England
关键词
BEHAVIOR; CLUSTER; FLUID; STATE; COILS;
D O I
10.1103/PhysRevE.105.024607
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
We use the replica method to study the dynamical glass transition of the Gaussian core model, a system of ultrasoft repulsive spheres interacting via a Gaussian potential, focusing on low temperatures and low-to-moderate densities. At constant temperature, an amorphous glassy state is entered upon a first compression but this glass melts as the density is further increased. In addition to this reentrant transition, a second, smooth transition is discovered between a continuous and a discretized glass. The properties of the former are continuous functions of temperatures, whereas the latter exhibits a succession of stripes, characterized by discontinuous jumps of the glassiness parameters. The glass physics of ultrasoft particles is hence richer than that of impenetrable particles for reasons that can be attributed to the ability of the former to create and break out-of-equilibrium clusters of overlapping particles.
引用
收藏
页数:7
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