Joint Quantum Centre Durham-Newcastle, and School of Mathematics and Statistics, Newcastle University, Newcastle upon Tyne NE1 7RU, United Kingdom.
Department of Physics, Lancaster University, Lancaster LA1 4YB, United Kingdom.
Phys Rev Lett. 2015 Jul 3;115(1):015302. doi: 10.1103/PhysRevLett.115.015302. Epub 2015 Jul 2.
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 intervortex separation.
在零温极限下，超流 3He-B 为通过超导涡旋流场中的准粒子激发的安德烈夫反射来研究量子湍流提供了一种独特的手段。我们通过显示涡旋线密度与涡旋缠结的安德烈夫反射率之间的关系，验证了 3He-B 中湍流的实验可视化，这是通过对真实的 3D 涡旋缠结进行安德烈夫反射的首次模拟实现的，并将结果与能够探测涡旋间距的小尺度上的量子湍流的首次实验测量进行了比较。
