Pioneering and construction of new research field for quantum turbulence

在超流液氦和超冷原子气体等量子流体中，涡旋被量子化，即所有涡旋的强度相同，量子湍流可以实现为量子化涡旋的高度纠缠态。量子化的涡旋是一种拓扑缺陷，其结构与其他拓扑缺陷非常相似，例如宇宙弦被预测在宇宙快速冷却后出现，以及在扰动的液晶中称为倾斜的线性缺陷。在我的工作中，我成功地将由各种拓扑缺陷构成的各种量子湍流分类为两种具有洛伦兹对称性的量子湍流。

In quantum fluid such as superfluid liquid helium and ultracold atomic gas, vortices are quantized, i.e., strength of vortices are same for all vortices, and quantum turbulence can be realized as highly tangled state of quantized vortices. Quantized vortices are topological defects and have quite similar structure to other topological defects such as cosmic strings that are predicted to arise just after rapid cooling of universe and linear defects called disclinations in disturbed liquid crystal. In my work, I have succeeded to classify various kinds of quantum turbulence constructed by various kinds of topological defects to just two types of quantum turbulence with the Lorentz symmetry.