dorsal/arxiv
View SchemaEscape rate from a metastable state weakly interacting with a heat bath driven by an external noise
| Authors | Jyotipratim Ray Chaudhuri, Debashis Barik, Suman Kumar Banik |
|---|---|
| Categories | |
| ArXiv ID | physics/0604052 |
| URL | https://arxiv.org/abs/physics/0604052 |
| DOI | 10.1103/PhysRevE.73.051101 |
| Journal | Phys. Rev. E 73, 051101 (2006) |
Abstract
Based on a system-reservoir model, where the reservoir is driven by an external stationary, Gaussian noise with arbitrary decaying correlation function, we study the escape rate from a metastable state in the energy diffusion regime. For the open system we derive the Fokker-Planck equation in the energy space and subsequently calculate the generalized non-Markovian escape rate from a metastable well in the energy diffusion domain. By considering the dynamics in a model cubic potential we show that the results obtained from numerical simulation are in good agreement with the theoretical prediction. It has been also shown numerically that the well known turnover feature can be restored from our model.
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"abstract": "Based on a system-reservoir model, where the reservoir is driven by an\nexternal stationary, Gaussian noise with arbitrary decaying correlation\nfunction, we study the escape rate from a metastable state in the energy\ndiffusion regime. For the open system we derive the Fokker-Planck equation in\nthe energy space and subsequently calculate the generalized non-Markovian\nescape rate from a metastable well in the energy diffusion domain. By\nconsidering the dynamics in a model cubic potential we show that the results\nobtained from numerical simulation are in good agreement with the theoretical\nprediction. It has been also shown numerically that the well known turnover\nfeature can be restored from our model.",
"arxiv_id": "physics/0604052",
"authors": [
"Jyotipratim Ray Chaudhuri",
"Debashis Barik",
"Suman Kumar Banik"
],
"categories": [
"physics.chem-ph",
"cond-mat.stat-mech"
],
"doi": "10.1103/PhysRevE.73.051101",
"journal_ref": "Phys. Rev. E 73, 051101 (2006)",
"title": "Escape rate from a metastable state weakly interacting with a heat bath driven by an external noise",
"url": "https://arxiv.org/abs/physics/0604052"
},
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