21 citations · 69 across the 6 of their papers we have counts for
6 papers
Vortex-mediated relaxation of magnon BEC into light Higgs quasiparticles
S. Autti, P. J. Heikkinen, S. M. Laine +4
A magnon Bose-Einstein condensate in superfluid He is a fine instrument for studying the surrounding macroscopic quantum system. At zero temperature, the BEC is subject to a fe…
Propagation of self-localised Q-ball solitons in the He universe
S. Autti, P. J. Heikkinen, G. E. Volovik +2
In relativistic quantum field theories, compact objects of interacting bosons can become stable owing to conservation of an additive quantum number . Discovering such -balls…
Measurements of anisotropic mass of magnons confined in a harmonic trap in superfluid He-B
V. V. Zavjalov, S. Autti, V. B. Eltsov +1
We can pump magnons to a nearly harmonic magneto-textural trap in superfluid He-B. Using the NMR spectroscopy of levels in the trap we have measured the anisotropic magnon mass…
Relaxation of Bose-Einstein Condensates of Magnons in Magneto-Textural Traps in Superfluid He-B
P. J. Heikkinen, S. Autti, V. B. Eltsov +3
In superfluid He-B externally pumped quantized spin-wave excitations or magnons spontaneously form a Bose-Einstein condensate in a 3-dimensional trap created with the order-par…
Gravity waves on the surface of topological superfluid 3He-B
V. B. Eltsov, P. J. Heikkinen, V. V. Zavjalov
We have observed waves on the free surface of 3He-B sample at temperatures below 0.2mK. The waves are excited by vibrations of the cryostat and detected by coupling the surface to…
Turbulent Vortex Flow Responses at the AB Interface in Rotating Superfluid 3He-B
P. M. Walmsley, V. B. Eltsov, P. J. Heikkinen +3
In a rotating two-phase sample of 3He-B and magnetic-field stabilized 3He-A the large difference in mutual friction dissipation at 0.20 Tc gives rise to unusual vortex flow respons…