Decay of unstable states in the presence of colored noise and random initial conditions. II. Analog experiments and digital simulations
The decay of an unstable state under the influence of external colored noise has been studied by means of analog experiments and digital simulations. For both fixed and random initial conditions, the time evolution of the second moment ¿x2(t)¿ of the system variable was determined and then used to e...
| Autores: | , , , , , , , |
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| Tipo de recurso: | artículo |
| Estado: | Versión publicada |
| Fecha de publicación: | 1989 |
| País: | España |
| Institución: | Universidad de Barcelona |
| Repositorio: | Dipòsit Digital de la UB |
| OAI Identifier: | oai:diposit.ub.edu:2445/9447 |
| Acceso en línea: | https://hdl.handle.net/2445/9447 |
| Access Level: | acceso abierto |
| Palabra clave: | Fluctuacions (Física) Probabilitats Soroll Mecànica estadística Processos estocàstics Fluctuations (Physics) Probabilities Noise Statistical mechanics Stochastic processes |
| Sumario: | The decay of an unstable state under the influence of external colored noise has been studied by means of analog experiments and digital simulations. For both fixed and random initial conditions, the time evolution of the second moment ¿x2(t)¿ of the system variable was determined and then used to evaluate the nonlinear relaxation time. The results obtained are found to be in excellent agreement with the theoretical predictions of the immediately preceding paper [Casademunt, Jiménez-Aquino, and Sancho, Phys. Rev. A 40, 5905 (1989)]. |
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