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...
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| 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 |
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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| id |
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irk-123456789-1570082019-06-20T01:28:47Z Activity induced first order transition for the current in a disordered medium Demaerel, T. Maes, C. 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. Вiдомо, що частинки можуть попасти в пастку завдяки випадково розташованим перешкодам, якщо вони зазнають сильних зiткнень. Ми представляємо модель, де струм у невпорядкованому середовищi зникає при великому зовнiшньому полi, але вiдновлюється при зростаннi активностi. Пiд активнiстю ми маємо на увазi часову варiацiю зовнiшнього усередненого за часом постiйного поля. Iнше пояснення вiдновлення струму полягає в тому, що частинки здатнi проходити нескiнченну послiдовнiсть потенцiальних бар’єрiв через механiзм, подiбний до стохастичного резонансу. Ми також обговорюємо роль “струшування” в процесах релаксацiї. 2017 Article 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. 1607-324X PACS: 05.40.-a 05.60.-k DOI:10.5488/CMP.20.33002 arXiv:1705.02820 http://dspace.nbuv.gov.ua/handle/123456789/157008 en Condensed Matter Physics Інститут фізики конденсованих систем НАН України |
| institution |
Digital Library of Periodicals of National Academy of Sciences of Ukraine |
| collection |
DSpace DC |
| language |
English |
| description |
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. |
| format |
Article |
| author |
Demaerel, T. Maes, C. |
| spellingShingle |
Demaerel, T. Maes, C. Activity induced first order transition for the current in a disordered medium Condensed Matter Physics |
| author_facet |
Demaerel, T. Maes, C. |
| author_sort |
Demaerel, T. |
| title |
Activity induced first order transition for the current in a disordered medium |
| title_short |
Activity induced first order transition for the current in a disordered medium |
| title_full |
Activity induced first order transition for the current in a disordered medium |
| title_fullStr |
Activity induced first order transition for the current in a disordered medium |
| title_full_unstemmed |
Activity induced first order transition for the current in a disordered medium |
| title_sort |
activity induced first order transition for the current in a disordered medium |
| publisher |
Інститут фізики конденсованих систем НАН України |
| publishDate |
2017 |
| url |
http://dspace.nbuv.gov.ua/handle/123456789/157008 |
| citation_txt |
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. |
| series |
Condensed Matter Physics |
| work_keys_str_mv |
AT demaerelt activityinducedfirstordertransitionforthecurrentinadisorderedmedium AT maesc activityinducedfirstordertransitionforthecurrentinadisorderedmedium |
| first_indexed |
2023-05-20T17:50:59Z |
| last_indexed |
2023-05-20T17:50:59Z |
| _version_ |
1796154235172159488 |