Half-quantum vortices and walls bounded by strings in the polar-distorted phases of topological superfluid 3He

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Half-quantum vortices and walls bounded by strings in the polar-distorted phases of topological superfluid 3He. / Mäkinen, Jere; Dmitriev, Vlaidimir; Nissinen, Jaakko; Rysti, Juho; Volovik, Grigory; Alexey, Yudin; Zhang, Kuang; Eltsov, Vladimir.

In: Nature Communications, Vol. 10, No. 1, 237, 01.12.2019, p. 1-8.

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@article{069c99ba8d764bc7a12cebf86b4d4595,
title = "Half-quantum vortices and walls bounded by strings in the polar-distorted phases of topological superfluid 3He",
abstract = "Symmetries of the physical world have guided formulation of fundamental laws, including relativistic quantum field theory and understanding of possible states of matter. Topological defects (TDs) often control the universal behavior of macroscopic quantum systems, while topology and broken symmetries determine allowed TDs. Taking advantage of the symmetry-breaking patterns in the phase diagram of nanoconfined superfluid 3He, we show that half-quantum vortices (HQVs)—linear topological defects carrying half quantum of circulation—survive transitions from the polar phase to other superfluid phases with polar distortion. In the polar-distorted A phase, HQV cores in 2D systems should harbor non-Abelian Majorana modes. In the polar-distorted B phase, HQVs form composite defects—walls bounded by strings hypothesized decades ago in cosmology. Our experiments establish the superfluid phases of 3He in nanostructured confinement as a promising topological media for further investigations ranging from topological quantum computing to cosmology and grand unification scenarios.",
author = "Jere M{\"a}kinen and Vlaidimir Dmitriev and Jaakko Nissinen and Juho Rysti and Grigory Volovik and Yudin Alexey and Kuang Zhang and Vladimir Eltsov",
note = "| openaire: EC/H2020/694248/EU//TOPVAC",
year = "2019",
month = "12",
day = "1",
doi = "10.1038/s41467-018-08204-8",
language = "English",
volume = "10",
pages = "1--8",
journal = "Nature Communications",
issn = "2041-1723",
number = "1",

}

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TY - JOUR

T1 - Half-quantum vortices and walls bounded by strings in the polar-distorted phases of topological superfluid 3He

AU - Mäkinen, Jere

AU - Dmitriev, Vlaidimir

AU - Nissinen, Jaakko

AU - Rysti, Juho

AU - Volovik, Grigory

AU - Alexey, Yudin

AU - Zhang, Kuang

AU - Eltsov, Vladimir

N1 - | openaire: EC/H2020/694248/EU//TOPVAC

PY - 2019/12/1

Y1 - 2019/12/1

N2 - Symmetries of the physical world have guided formulation of fundamental laws, including relativistic quantum field theory and understanding of possible states of matter. Topological defects (TDs) often control the universal behavior of macroscopic quantum systems, while topology and broken symmetries determine allowed TDs. Taking advantage of the symmetry-breaking patterns in the phase diagram of nanoconfined superfluid 3He, we show that half-quantum vortices (HQVs)—linear topological defects carrying half quantum of circulation—survive transitions from the polar phase to other superfluid phases with polar distortion. In the polar-distorted A phase, HQV cores in 2D systems should harbor non-Abelian Majorana modes. In the polar-distorted B phase, HQVs form composite defects—walls bounded by strings hypothesized decades ago in cosmology. Our experiments establish the superfluid phases of 3He in nanostructured confinement as a promising topological media for further investigations ranging from topological quantum computing to cosmology and grand unification scenarios.

AB - Symmetries of the physical world have guided formulation of fundamental laws, including relativistic quantum field theory and understanding of possible states of matter. Topological defects (TDs) often control the universal behavior of macroscopic quantum systems, while topology and broken symmetries determine allowed TDs. Taking advantage of the symmetry-breaking patterns in the phase diagram of nanoconfined superfluid 3He, we show that half-quantum vortices (HQVs)—linear topological defects carrying half quantum of circulation—survive transitions from the polar phase to other superfluid phases with polar distortion. In the polar-distorted A phase, HQV cores in 2D systems should harbor non-Abelian Majorana modes. In the polar-distorted B phase, HQVs form composite defects—walls bounded by strings hypothesized decades ago in cosmology. Our experiments establish the superfluid phases of 3He in nanostructured confinement as a promising topological media for further investigations ranging from topological quantum computing to cosmology and grand unification scenarios.

UR - http://www.scopus.com/inward/record.url?scp=85060131901&partnerID=8YFLogxK

U2 - 10.1038/s41467-018-08204-8

DO - 10.1038/s41467-018-08204-8

M3 - Article

VL - 10

SP - 1

EP - 8

JO - Nature Communications

T2 - Nature Communications

JF - Nature Communications

SN - 2041-1723

IS - 1

M1 - 237

ER -

ID: 30804066