Superfluid 3He-B in the zero-temperature limit offers a unique means of studying quantum turbulence by the Andreev reflection of quasiparticle excitations by the vortex flow fields. We validate the experimental visualization of turbulence in 3He-B by showing the relation between the vortex-line density and the Andreev reflectance of the vortex tangle in the first simulations of the Andreev reflectance by a realistic 3D vortex tangle, and comparing the results with the first experimental measurements able to probe quantum turbulence on length scales smaller than the inter-vortex separation.
@article{arxiv.1503.08157,
title = {Visualizing Pure Quantum Turbulence in Superfluid $^{3}$He: Andreev Reflection and its Spectral Properties},
author = {A. W. Baggaley and V. Tsepelin and C. F. Barenghi and S. N. Fisher and G. R. Pickett and Y. A. Sergeev and N. Suramlishvili},
journal= {arXiv preprint arXiv:1503.08157},
year = {2015}
}
Comments
5 pages, 4 figures, and Supplemental Material (2 pages, 2 figures)