Polar Phase of Superfluid 3He: Dirac Lines in the Parameter and Momentum Spaces

G. E. Volovik

doi:10.1134/S002136401805003X

Polar Phase of Superfluid ³He: Dirac Lines in the Parameter and Momentum Spaces

G. E. Volovik^*

^*Corresponding author for this work

Landau Institute for Theoretical Physics

Research output: Contribution to journal › Article › Scientific › peer-review

8 Citations (Scopus)

Abstract

The time reversal symmetric polar phase of the spin-triplet superfluid ³He has two types of Dirac nodal lines. In addition to the Dirac loop in the spectrum of the fermionic Bogoliubov quasiparticles in the momentum space (p_x, p_y, p_z), the spectrum of bosons (magnons) has Dirac loop in the 3D space of parameters—the components of magnetic field (H_x,H_y,H_z). The bosonic Dirac system lives on the border between the type-I and type-II.

Original language	English
Pages (from-to)	324-326
Number of pages	3
Journal	JETP Letters
Volume	107
Issue number	5
DOIs	https://doi.org/10.1134/S002136401805003X
Publication status	Published - 1 Mar 2018
MoE publication type	A1 Journal article-refereed

Funding

I thank Tero Heikkilä for interesting discussions, which resulted in this paper. This work was supported by the European Research Council (ERC) under the European Union’s Horizon 2020 research and innovation programme (Grant Agreement no. 694248).

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10.1134/S002136401805003X

https://arxiv.org/abs/1801.04576

Cite this

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title = "Polar Phase of Superfluid 3He: Dirac Lines in the Parameter and Momentum Spaces",

abstract = "The time reversal symmetric polar phase of the spin-triplet superfluid 3He has two types of Dirac nodal lines. In addition to the Dirac loop in the spectrum of the fermionic Bogoliubov quasiparticles in the momentum space (px, py, pz), the spectrum of bosons (magnons) has Dirac loop in the 3D space of parameters{\textemdash}the components of magnetic field (Hx,Hy,Hz). The bosonic Dirac system lives on the border between the type-I and type-II.",

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Polar Phase of Superfluid ³He: Dirac Lines in the Parameter and Momentum Spaces

Abstract

Funding

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TOPVAC: From Topological Matter to Relativistic Quantum Vacuum

Cite this

Polar Phase of Superfluid 3He: Dirac Lines in the Parameter and Momentum Spaces

Abstract

Funding

Access to Document

Other files and links

Fingerprint

Projects

TOPVAC: From Topological Matter to Relativistic Quantum Vacuum

Cite this

Polar Phase of Superfluid ³He: Dirac Lines in the Parameter and Momentum Spaces