aalto1 untyped-item.component.html
Magnon Condensation into a Q Ball in 3He−B
Loading...
Access rights
openAccess
publishedVersion
URL
Journal Title
Journal ISSN
Volume Title
A1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä
This publication is imported from Aalto University research portal.
View publication in the Research portal (opens in new window)
View/Open full text file from the Research portal (opens in new window)
View publication in the Research portal (opens in new window)
View/Open full text file from the Research portal (opens in new window)
Unless otherwise stated, all rights belong to the author. You may download, display and print this publication for Your own personal use. Commercial use is prohibited.
Authors
Date
Department
Major/Subject
Mcode
Degree programme
Language
en
Pages
Series
Physical Review Letters, Volume 98, issue 26, pp. 1-4
Abstract
The theoretical prediction of Q balls in relativistic quantum fields is realized here experimentally in superfluid 3He−B. The condensed-matter analogs of relativistic Q balls are responsible for an extremely long-lived signal of magnetic induction observed in NMR at the lowest temperatures. This Q ball is another representative of a state with phase coherent precession of nuclear spins in 3He−B, similar to the well-known homogeneously precessing domain, which we interpret as Bose-Einstein condensation of spin waves—magnons. At large charge Q, the effect of self-localization is observed. In the language of relativistic quantum fields it is caused by interaction between the charged and neutral fields, where the neutral field provides the potential for the charged one. In the process of self-localization the charged field modifies locally the neutral field so that the potential well is formed in which the charge Q is condensed.
Description
Keywords
Other note
Citation
Bunkov, Y M & Volovik, G E 2007, 'Magnon Condensation into a Q Ball in 3He−B', Physical Review Letters, vol. 98, no. 26, 265302, pp. 1-4. https://doi.org/10.1103/PhysRevLett.98.265302