Stochastic Dynamics of a Vortex Loop. Large Scale Stirring Force
| dc.creator | Nemirovskii, Sergey K. | |
| dc.creator | Baltsevich, A. Ja. | |
| dc.date | 2000-11-13 | |
| dc.date.accessioned | 2026-07-07T02:39:19Z | |
| dc.date.available | 2026-07-07T02:39:19Z | |
| dc.description | Stochastic dynamics of a vortex filament obeying local induced approximation equation plus random agitation is investigated by analytical and numerical methods. The character of a stirring force is supposed to be a white noise with spatial correlator concentrated at large distances comparable with size of the loop. Dependence of the spectral function $<\mathbf{s}_κ^α\mathbf{s}_κ^β>$ of the vortex line on both the one-dimensional wave vector $κ$ and intensity of the external force correlator $<\mathbfζ_κ^α\mathbfζ_κ^α>$ was studied. Here $\mathbf{s}_κ^α$ is the Fourier transform of the line element position $\mathbf{s}^α(ξ, t)$. It is shown that under the influence of an external random force a vortex ring becomes a small tangle whose mean size depends on external force intensity. The theoretical predictions and the numerical results are in reasonable agreement. | |
| dc.description | latex, 7 pages, 2 Postscript figures, uses subeqnar.sty, sprmindx.sty, cropmark.sty, physprbb.sty, svmult.cls, to be published in "Quantized vortex dynamics and superfluid turbulence", Ed. C. Barenghi (Springer Verlag, Berlin, 2001) | |
| dc.identifier | https://arxiv.org/abs/cond-mat/0011214 | |
| dc.identifier | http://arxiv.org/abs/cond-mat/0011214 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/17012 | |
| dc.subject | Statistical Mechanics | |
| dc.subject | Soft Condensed Matter | |
| dc.title | Stochastic Dynamics of a Vortex Loop. Large Scale Stirring Force | |
| dc.type | text |