Domain walls in nonequilibrium systems and the emergence of persistent patterns.
Domain walls in nonequilibrium systems and the emergence of persistent patterns.
复制标题
非平衡系统中的畴壁和持久模式的出现。
DOI:
10.1103/physreve.48.705
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发表时间:
1993
期刊:
影响因子:
--
通讯作者:
E. Meron
中科院分区:
文献类型:
--
作者:
A. Hagberg;E. Meron
Domain walls in equilibrium phase transitions propagate in a preferred direction so as to minimize the free energy of the system. As a result, initial spatio-temporal patterns ultimately decay toward uniform states. The absence of a variational principle far from equilibrium allows the coexistence of domain walls propagating in any direction. As a consequence, *persistent* patterns may emerge. We study this mechanism of pattern formation using a non-variational extension of Landau's model for second order phase transitions. PACS numbers: 05.70.Fh, 42.65.Pc, 47.20.Ky, 82.20Mj