Observation of Half-Quantum Vortices in Topological Superfluid 3He

被引：105

作者：

Autti, S. ^{[1
]}

Dmitriev, V. V. ^{[2
]}

Makinen, J. T. ^{[1
]}

Soldatov, A. A. ^{[2
,3
]}

Volovik, G. E. ^{[1
,4
]}

Yudin, A. N. ^{[2
]}

Zavjalov, V. V. ^{[1
]}

Eltsov, V. B. ^{[1
]}

机构：

[1] Aalto Univ, Dept Appl Phys, Low Temp Lab, POB 15100, FI-00076 Aalto, Finland

[2] RAS, PL Kapitsa Phys Problems Inst, Moscow 119334, Russia

[3] Moscow Inst Phys & Technol, Dolgoprudnyi 141700, Russia

[4] Landau Inst Theoret Phys, Chernogolovka 142432, Russia

来源：

PHYSICAL REVIEW LETTERS | 2016年 / 117卷 / 25期

基金：

芬兰科学院; 俄罗斯基础研究基金会;

关键词：

B-PHASE; STATES; SPIN; SINGULARITIES; STATISTICS; TRANSITION; SIMULATION; CREATION; FORK;

D O I：

10.1103/PhysRevLett.117.255301

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

One of the most sought-after objects in topological quantum-matter systems is a vortex carrying half a quantum of circulation. They were originally predicted to exist in superfluid He-3-A but have never been resolved there. Here we report an observation of half-quantum vortices (HQVs) in the polar phase of superfluid He-3. The vortices are created with rotation or by the Kibble-Zurek mechanism and identified based on their nuclear magnetic resonance signature. This discovery provides a pathway for studies of unpaired Majorana modes bound to the HQV cores in the polar-distorted A phase.

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页数：6

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