Vortex-mediated relaxation of magnon BEC into light Higgs quasiparticles

S. Autti; P. J. Heikkinen; S. M. Laine; J. T. Mäkinen; E. V. Thuneberg; V. V. Zavjalov; V. B. Eltsov

doi:10.1103/PhysRevResearch.3.L032002

Vortex-mediated relaxation of magnon BEC into light Higgs quasiparticles

S. Autti, P. J. Heikkinen, S. M. Laine, J. T. Mäkinen, E. V. Thuneberg, V. V. Zavjalov, V. B. Eltsov

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Abstract

A magnon Bose-Einstein condensate (BEC) in superfluid ³He is a fine instrument for studying the surrounding macroscopic quantum system. At zero temperature, the BEC is subject to a few distinct forms of decay into other collective excitations, owing to momentum and energy conservation in a quantum vacuum. We study the vortex-Higgs mechanism: The vortices relax the requirement for momentum conservation, allowing the optical magnons of the BEC to transform into light Higgs quasiparticles. This facilitates a direct measurement of the dimensions of the B-phase double-core vortex, providing experimental access to elusive phenomena, such as the Kelvin wave cascade and core-bound Majorana fermions. Our paper expands the spectrum of possible interactions between magnetic quasiparticles in ³He-B and lays the groundwork for building magnon-based quantum devices.

Original language	English
Article number	L032002
Number of pages	6
Journal	Physical Review Research
Volume	3
Issue number	3
DOIs	https://doi.org/10.1103/PhysRevResearch.3.L032002
Publication status	Published - 2 Jul 2021

Keywords

magnon quasiparticle excitation
topological defect
helium-3
Bose-Einstein condensates
superfluid
NMR
topological superfluid

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

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10.1103/PhysRevResearch.3.L032002Licence: CC BY

Final published versionFinal published version, 672 KBLicence: CC BY

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@article{2d82b42b75d049a586babf9309386839,

title = "Vortex-mediated relaxation of magnon BEC into light Higgs quasiparticles",

abstract = "A magnon Bose-Einstein condensate (BEC) in superfluid 3He is a fine instrument for studying the surrounding macroscopic quantum system. At zero temperature, the BEC is subject to a few distinct forms of decay into other collective excitations, owing to momentum and energy conservation in a quantum vacuum. We study the vortex-Higgs mechanism: The vortices relax the requirement for momentum conservation, allowing the optical magnons of the BEC to transform into light Higgs quasiparticles. This facilitates a direct measurement of the dimensions of the B-phase double-core vortex, providing experimental access to elusive phenomena, such as the Kelvin wave cascade and core-bound Majorana fermions. Our paper expands the spectrum of possible interactions between magnetic quasiparticles in 3He-B and lays the groundwork for building magnon-based quantum devices.",

keywords = "magnon quasiparticle excitation, topological defect, helium-3, Bose-Einstein condensates, superfluid, NMR, topological superfluid",

author = "S. Autti and Heikkinen, \{P. J.\} and Laine, \{S. M.\} and M{\"a}kinen, \{J. T.\} and Thuneberg, \{E. V.\} and Zavjalov, \{V. V.\} and Eltsov, \{V. B.\}",

note = "Publisher Copyright: {\textcopyright} 2021 authors. Published by the American Physical Society.",

year = "2021",

month = jul,

day = "2",

doi = "10.1103/PhysRevResearch.3.L032002",

language = "English",

volume = "3",

journal = "Physical Review Research",

issn = "2643-1564",

publisher = "American Physical Society",

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T1 - Vortex-mediated relaxation of magnon BEC into light Higgs quasiparticles

AU - Autti, S.

AU - Heikkinen, P. J.

AU - Laine, S. M.

AU - Mäkinen, J. T.

AU - Thuneberg, E. V.

AU - Zavjalov, V. V.

AU - Eltsov, V. B.

PY - 2021/7/2

Y1 - 2021/7/2

N2 - A magnon Bose-Einstein condensate (BEC) in superfluid 3He is a fine instrument for studying the surrounding macroscopic quantum system. At zero temperature, the BEC is subject to a few distinct forms of decay into other collective excitations, owing to momentum and energy conservation in a quantum vacuum. We study the vortex-Higgs mechanism: The vortices relax the requirement for momentum conservation, allowing the optical magnons of the BEC to transform into light Higgs quasiparticles. This facilitates a direct measurement of the dimensions of the B-phase double-core vortex, providing experimental access to elusive phenomena, such as the Kelvin wave cascade and core-bound Majorana fermions. Our paper expands the spectrum of possible interactions between magnetic quasiparticles in 3He-B and lays the groundwork for building magnon-based quantum devices.

AB - A magnon Bose-Einstein condensate (BEC) in superfluid 3He is a fine instrument for studying the surrounding macroscopic quantum system. At zero temperature, the BEC is subject to a few distinct forms of decay into other collective excitations, owing to momentum and energy conservation in a quantum vacuum. We study the vortex-Higgs mechanism: The vortices relax the requirement for momentum conservation, allowing the optical magnons of the BEC to transform into light Higgs quasiparticles. This facilitates a direct measurement of the dimensions of the B-phase double-core vortex, providing experimental access to elusive phenomena, such as the Kelvin wave cascade and core-bound Majorana fermions. Our paper expands the spectrum of possible interactions between magnetic quasiparticles in 3He-B and lays the groundwork for building magnon-based quantum devices.

KW - magnon quasiparticle excitation

KW - topological defect

KW - helium-3

KW - Bose-Einstein condensates

KW - superfluid

KW - NMR

KW - topological superfluid

UR - https://www.scopus.com/pages/publications/85115898355

U2 - 10.1103/PhysRevResearch.3.L032002

DO - 10.1103/PhysRevResearch.3.L032002

M3 - Article

AN - SCOPUS:85115898355

SN - 2643-1564

VL - 3

JO - Physical Review Research

JF - Physical Review Research

IS - 3

M1 - L032002

ER -

Vortex-mediated relaxation of magnon BEC into light Higgs quasiparticles

Abstract

Keywords

UN SDGs

Access to Document

Other files and links

EMP: European Microkelvin Platform

Seminar: Probing the free surface of topological superfluid helium-3 with magnon Bose-Einstein condensate

Cite this

Vortex-mediated relaxation of magnon BEC into light Higgs quasiparticles

Abstract

Keywords

UN SDGs

Access to Document

Other files and links

Projects

EMP: European Microkelvin Platform

Activities

Seminar: Probing the free surface of topological superfluid helium-3 with magnon Bose-Einstein condensate

Cite this