Depinning by quenched randomness.
Depinning by quenched randomness.
复制标题
通过消除随机性来脱钉。
作者：
Kardar
与壁的较弱键吸引的界面可以通过本体中的淬灭杂质以及热波动而脱钉。二维精确计算表明，具有随机性的脱钉转变的特点是不连续的比热和局部 1 长度的二次发散。数值模拟表明，在没有类似的热波动脱钉的情况下，例如，随机性离域。 ，如在与本体中的弱键条结合的界面中，或对于两个吸引界面。
An interface attracted by weaker bonds to a wall can be depinned by quenched impurities in the bulk as well as by thermal fluctuations. Exact calculations in two dimensions indicate that the depinning transition with randomness is characterized by a discontinuous specific heat and a quadratic divergence of the localization 1ength. Numerical simulations indicate delocalization by randomness in cases where there is no analogous depinning by thermal fluctuations, e.g. , as in an interface bound to a strip of weak bonds in the bulk, or for two attracting interfaces.