Projects per year
Abstract
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 He3−A but have never been resolved there. Here we report an observation of half-quantum vortices (HQVs) in the polar phase of superfluid He3. 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.
Original language | English |
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Article number | 255301 |
Pages (from-to) | 1-6 |
Number of pages | 6 |
Journal | Physical Review Letters |
Volume | 117 |
Issue number | 25 |
DOIs | |
Publication status | Published - 14 Dec 2016 |
MoE publication type | A1 Journal article-refereed |
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Dive into the research topics of 'Observation of Half-Quantum Vortices in Topological Superfluid 3He'. Together they form a unique fingerprint.Projects
- 2 Finished
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Low Temperature Physics
Tuoriniemi, J. (Principal investigator)
17/02/2016 → 31/12/2017
Project: Academy of Finland: Other research funding
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Centre of Excellence in Low Temperature Quantum Phenomena and Devices
Eltsov, V. (Principal investigator)
01/01/2015 → 31/12/2017
Project: Academy of Finland: Other research funding
Equipment
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OtaNano – Low Temperature Laboratory
Savin, A. (Manager) & Rissanen, A. (Other)
OtaNanoFacility/equipment: Facility