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Titolo:
Stochastic resonant memory storage device - art. no. 031101
Autore:
Carusela, MF; Perazzo, RPJ; Romanelli, L;
Indirizzi:
Univ Gen Sarmiento, Inst Ciencias, RA-1663 San Miguel De Tucuman, Argentina Univ Gen Sarmiento San Miguel De Tucuman Argentina RA-1663 an, Argentina Univ Buenos Aires, Fac Ciencias Exactas, Ctr Estudios Avanzados, RA-1114 Buenos Aires, DF, Argentina Univ Buenos Aires Buenos Aires DF Argentina RA-1114 Aires, DF, Argentina Univ Buenos Aires, Fac Ciencias Exactas, Dept Fis, RA-1114 Buenos Aires, DF, Argentina Univ Buenos Aires Buenos Aires DF Argentina RA-1114 Aires, DF, Argentina
Titolo Testata:
PHYSICAL REVIEW E
fascicolo: 3, volume: 6403, anno: 2001,
parte:, 1
pagine: 1101 -
SICI:
1063-651X(200109)6403:3<1101:SRMSD->2.0.ZU;2-6
Fonte:
ISI
Lingua:
ENG
Soggetto:
NOISE-ENHANCED PROPAGATION; SPATIOTEMPORAL SYNCHRONIZATION; BISTABLE SYSTEMS; SIGNAL; TRANSMISSION; INFORMATION; CRAYFISH;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Physical, Chemical & Earth Sciences
--discip_EC--
Citazioni:
20
Recensione:
Indirizzi per estratti:
Indirizzo: Carusela, MF Univ Gen Sarmiento, Inst Ciencias, Roca 850, RA-1663 San Miguel De Tucuman, Argentina Univ Gen Sarmiento Roca 850 San Miguel De TucumanArgentina RA-1663
Citazione:
M.F. Carusela et al., "Stochastic resonant memory storage device - art. no. 031101", PHYS REV E, 6403(3), 2001, pp. 1101

Abstract

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 thewhole ring. A traveling wave is then found to be transmitted several timesalong 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 T-mem.

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Documento generato il 10/07/20 alle ore 09:30:56