{
  "id": "1703.03645",
  "version": "v1",
  "published": "2017-03-10T12:04:53.000Z",
  "updated": "2017-03-10T12:04:53.000Z",
  "title": "Coexistence of quantum and classical flows in quantum turbulence in the $T=0$ limit",
  "authors": [
    "P. M. Walmsley",
    "A. I. Golov"
  ],
  "categories": [
    "physics.flu-dyn",
    "cond-mat.other"
  ],
  "abstract": "Tangles of quantized vortex line of initial density ${\\cal L}(0) \\sim 6\\times 10^3$\\,cm$^{-2}$ and variable amplitude of fluctuations of flow velocity $U(0)$ at the largest length scale were generated in superfluid $^4$He at $T=0.17$\\,K, and their free decay ${\\cal L}(t)$ was measured. If $U(0)$ is small, the excess random component of vortex line length firstly decays as ${\\cal L} \\propto t^{-1}$ until it becomes comparable with the structured component responsible for the classical velocity field, and the decay changes to ${\\cal L} \\propto t^{-3/2}$. The latter regime always ultimately prevails, provided the classical description of $U$ holds. A quantitative model of coexisting cascades of quantum and classical energies describes all regimes of the decay.",
  "revisions": [
    {
      "version": "v1",
      "updated": "2017-03-10T12:04:53.000Z"
    }
  ],
  "analyses": {
    "keywords": [
      "quantum turbulence",
      "classical flows",
      "vortex line length firstly decays",
      "coexistence",
      "largest length scale"
    ],
    "note": {
      "typesetting": "TeX",
      "pages": 0,
      "language": "en",
      "license": "arXiv",
      "status": "editable"
    }
  }
}