Activity induced first order transition for the current in a disordered medium
It is well known that particles can get trapped by randomly placed obstacles when they are pushed too much. We present a model where the current in a disordered medium dies at a large external field, but is reborn when the activity is increased. By activity we mean the time-variation of the extern...
Збережено в:
| Дата: | 2017 |
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| Автори: | , |
| Формат: | Стаття |
| Мова: | English |
| Опубліковано: |
Інститут фізики конденсованих систем НАН України
2017
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| Назва видання: | Condensed Matter Physics |
| Онлайн доступ: | http://dspace.nbuv.gov.ua/handle/123456789/157008 |
| Теги: |
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| Назва журналу: | Digital Library of Periodicals of National Academy of Sciences of Ukraine |
| Цитувати: | Activity induced first order transition for the current in a disordered medium / T. Demaerel, C. Maes // Condensed Matter Physics. — 2017. — Т. 20, № 3. — С. 33002: 1–13. — Бібліогр.: 17 назв. — англ. |
Репозитарії
Digital Library of Periodicals of National Academy of Sciences of Ukraine| Резюме: | It is well known that particles can get trapped by randomly placed obstacles when they are pushed too much. We
present a model where the current in a disordered medium dies at a large external field, but is reborn when the
activity is increased. By activity we mean the time-variation of the external driving at a constant time-averaged
field. A different interpretation of the resurgence of the current is that the particles are capable of taking an
infinite sequence of potential barriers via a mechanism similar to stochastic resonance. We add a discussion
regarding the role of “shaking” in processes of relaxation. |
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