Stochastic resonant memory storage device
We show that an extended system operating in the regime of stochastic resonance can act as a short-term memory device. The system under study is a ring of overdamped bistable oscillators coupled directionally, being each also subject to an external source of Gaussian white noise (the noise sources a...
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| Formato: | JOUR |
| Acceso en línea: | http://hdl.handle.net/20.500.12110/paper_1063651X_v64_n3_p5_Carusela |
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todo:paper_1063651X_v64_n3_p5_Carusela2023-10-03T16:01:35Z Stochastic resonant memory storage device Carusela, M.F. Perazzo, R.P.J. Romanelli, L. We show that an extended system operating in the regime of stochastic resonance can act as a short-term memory device. The system under study is a ring of overdamped bistable oscillators coupled directionally, being each also subject to an external source of Gaussian white noise (the noise sources are independent). A single oscillator is driven by an external periodic force, assumed to act only over the time that the signal takes to traverse the whole ring. A traveling wave is then found to be transmitted several times along the ring with a small damping, provided that the driven oscillator operates in a regime close to stochastic resonance. If noise is suppressed from any oscillator of the chain, the traveling wave is immediately damped. The ring is thus found to act as a short-term memory device in which the stored information (one bit, corresponding to the presence or absence of the external driving) is sustained by noise during a characteristic time (Formula presented) © 2001 The American Physical Society. JOUR info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar http://hdl.handle.net/20.500.12110/paper_1063651X_v64_n3_p5_Carusela |
| institution |
Universidad de Buenos Aires |
| institution_str |
I-28 |
| repository_str |
R-134 |
| collection |
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) |
| description |
We show that an extended system operating in the regime of stochastic resonance can act as a short-term memory device. The system under study is a ring of overdamped bistable oscillators coupled directionally, being each also subject to an external source of Gaussian white noise (the noise sources are independent). A single oscillator is driven by an external periodic force, assumed to act only over the time that the signal takes to traverse the whole ring. A traveling wave is then found to be transmitted several times along the ring with a small damping, provided that the driven oscillator operates in a regime close to stochastic resonance. If noise is suppressed from any oscillator of the chain, the traveling wave is immediately damped. The ring is thus found to act as a short-term memory device in which the stored information (one bit, corresponding to the presence or absence of the external driving) is sustained by noise during a characteristic time (Formula presented) © 2001 The American Physical Society. |
| format |
JOUR |
| author |
Carusela, M.F. Perazzo, R.P.J. Romanelli, L. |
| spellingShingle |
Carusela, M.F. Perazzo, R.P.J. Romanelli, L. Stochastic resonant memory storage device |
| author_facet |
Carusela, M.F. Perazzo, R.P.J. Romanelli, L. |
| author_sort |
Carusela, M.F. |
| title |
Stochastic resonant memory storage device |
| title_short |
Stochastic resonant memory storage device |
| title_full |
Stochastic resonant memory storage device |
| title_fullStr |
Stochastic resonant memory storage device |
| title_full_unstemmed |
Stochastic resonant memory storage device |
| title_sort |
stochastic resonant memory storage device |
| url |
http://hdl.handle.net/20.500.12110/paper_1063651X_v64_n3_p5_Carusela |
| work_keys_str_mv |
AT caruselamf stochasticresonantmemorystoragedevice AT perazzorpj stochasticresonantmemorystoragedevice AT romanellil stochasticresonantmemorystoragedevice |
| _version_ |
1807320984438439936 |