Schoepe, Wilfried (2004) Fluctuations and stability of superfluid turbulence at mK temperatures. PHYSICAL REVIEW LETTERS, 92 (9): 095301. ISSN 0031-9007, 1079-7114
Full text not available from this repository.Abstract
Turbulent flow of superfluid (4)He at mK temperatures around an oscillating microsphere is known to be unstable at low driving forces, switching intermittently between turbulent and laminar phases. The lifetimes of the turbulent phases are exponentially distributed, and the mean lifetimes grow exponentially with the square of the driving force. These experimental results are attributed to statistical fluctuations of the density L of the vortex line length. As a result, a normal probability distribution of L(2) is found having a standard deviation of 2.9x10(14) m(-4) and a spectral bandwidth Deltaomegaapproximate to13 s(-1).
| Item Type: | Article |
|---|---|
| Subjects: | 500 Science > 530 Physics |
| Divisions: | Physics > Institute of Experimental and Applied Physics > Alumni or Retired Professors > Prof. Wilfried Schoepe |
| Depositing User: | Dr. Gernot Deinzer |
| Date Deposited: | 21 Jul 2021 10:44 |
| Last Modified: | 21 Jul 2021 10:44 |
| URI: | https://pred.uni-regensburg.de/id/eprint/37888 |
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