dorsal/arxiv
View SchemaNatural boundaries for the Smoluchowski equation and affiliated diffusion processes
| Authors | Ph. Blanchard, P. Garbaczewski |
|---|---|
| Categories | |
| ArXiv ID | quant-ph/9802005 |
| URL | https://arxiv.org/abs/quant-ph/9802005 |
| DOI | 10.1103/PhysRevE.49.3815 |
| Journal | Phys.Rev.E49:3815-3824,1994 |
Abstract
The Schr\"{o}dinger problem of deducing the microscopic dynamics from the input-output statistics data is known to admit a solution in terms of Markov diffusions. The uniqueness of solution is found linked to the natural boundaries respected by the underlying random motion. By choosing a reference Smoluchowski diffusion process, we automatically fix the Feynman-Kac potential and the field of local accelerations it induces. We generate the family of affiliated diffusions with the same local dynamics, but different inaccessible boundaries on finite, semi-infinite and infinite domains. For each diffusion process a unique Feynman-Kac kernel is obtained by the constrained (Dirichlet boundary data) Wiener path integration.As a by-product of the discussion, we give an overview of the problem of inaccessible boundaries for the diffusion and bring together (sometimes viewed from unexpected angles) results which are little known, and dispersed in publications from scarcely communicating areas of mathematics and physics.
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"abstract": "The Schr\\\"{o}dinger problem of deducing the microscopic dynamics from the\ninput-output statistics data is known to admit a solution in terms of Markov\ndiffusions. The uniqueness of solution is found linked to the natural\nboundaries respected by the underlying random motion. By choosing a reference\nSmoluchowski diffusion process, we automatically fix the Feynman-Kac potential\nand the field of local accelerations it induces. We generate the family of\naffiliated diffusions with the same local dynamics, but different inaccessible\nboundaries on finite, semi-infinite and infinite domains. For each diffusion\nprocess a unique Feynman-Kac kernel is obtained by the constrained (Dirichlet\nboundary data) Wiener path integration.As a by-product of the discussion, we\ngive an overview of the problem of inaccessible boundaries for the diffusion\nand bring together (sometimes viewed from unexpected angles) results which are\nlittle known, and dispersed in publications from scarcely communicating areas\nof mathematics and physics.",
"arxiv_id": "quant-ph/9802005",
"authors": [
"Ph. Blanchard",
"P. Garbaczewski"
],
"categories": [
"quant-ph",
"cond-mat"
],
"doi": "10.1103/PhysRevE.49.3815",
"journal_ref": "Phys.Rev.E49:3815-3824,1994",
"title": "Natural boundaries for the Smoluchowski equation and affiliated diffusion processes",
"url": "https://arxiv.org/abs/quant-ph/9802005"
},
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