Memory formation in matter
| Autor: | Srikanth Sastry, Joseph D. Paulsen, Zorana Zeravcic, Sidney R. Nagel, Nathan C. Keim |
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| Jazyk: | angličtina |
| Rok vydání: | 2018 |
| Předmět: |
Physics
Capillary wave Condensed Matter - Materials Science Condensed matter physics General Physics and Astronomy Materials Science (cond-mat.mtrl-sci) FOS: Physical sciences 02 engineering and technology Shape-memory alloy Disordered Systems and Neural Networks (cond-mat.dis-nn) Condensed Matter - Soft Condensed Matter Condensed Matter - Disordered Systems and Neural Networks 021001 nanoscience & nanotechnology Transient analysis 01 natural sciences Hysteresis Disparate system Magnet 0103 physical sciences Memory formation Soft Condensed Matter (cond-mat.soft) 010306 general physics 0210 nano-technology Spin-½ |
| Popis: | Memory formation in matter is a theme of broad intellectual relevance; it sits at the interdisciplinary crossroads of physics, biology, chemistry, and computer science. Memory connotes the ability to encode, access, and erase signatures of past history in the state of a system. Once the system has completely relaxed to thermal equilibrium, it is no longer able to recall aspects of its evolution. Memory of initial conditions or previous training protocols will be lost. Thus many forms of memory are intrinsically tied to far-from-equilibrium behavior and to transient response to a perturbation. This general behavior arises in diverse contexts in condensed matter physics and materials: phase change memory, shape memory, echoes, memory effects in glasses, return-point memory in disordered magnets, as well as related contexts in computer science. Yet, as opposed to the situation in biology, there is currently no common categorization and description of the memory behavior that appears to be prevalent throughout condensed-matter systems. Here we focus on material memories. We will describe the basic phenomenology of a few of the known behaviors that can be understood as constituting a memory. We hope that this will be a guide towards developing the unifying conceptual underpinnings for a broad understanding of memory effects that appear in materials. |
| Databáze: | OpenAIRE |
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