Multiple Transient Memories in Experiments on Sheared Non-Brownian Suspensions

被引：78
|
作者：
Paulsen, Joseph D. [1 ,2 ,4 ,5 ]
Keim, Nathan C. [3 ,4 ,5 ]
Nagel, Sidney R. [4 ,5 ]
机构：
[1] Univ Massachusetts, Dept Phys, Amherst, MA 01003 USA
[2] Univ Massachusetts, Dept Polymer Sci & Engn, Amherst, MA 01003 USA
[3] Univ Penn, Dept Mech Engn & Appl Mech, Philadelphia, PA 19104 USA
[4] Univ Chicago, James Franck Inst, Chicago, IL 60637 USA
[5] Univ Chicago, Dept Phys, Chicago, IL 60637 USA
来源：
PHYSICAL REVIEW LETTERS | 2014年 / 113卷 / 06期
基金：
美国国家科学基金会;
关键词：
HYSTERESIS; CHAOS;
D O I：
10.1103/PhysRevLett.113.068301
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
A system with multiple transient memories can remember a set of inputs but subsequently forgets almost all of them, even as they are continually applied. If noise is added, the system can store all memories indefinitely. The phenomenon has recently been predicted for cyclically sheared non-Brownian suspensions. Here we present experiments on such suspensions, finding behavior consistent with multiple transient memories and showing how memories can be stabilized by noise.
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页数：5
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