Rotating quantum wave turbulence

JT Mäkinen, S Autti, PJ Heikkinen, JJ Hosio… - Nature physics, 2023 - nature.com
Turbulence under strong influence of rotation is described as an ensemble of interacting
inertial waves across a wide range of length scales. In macroscopic quantum condensates …

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

JT Mäkinen, VV Dmitriev, J Nissinen, J Rysti… - Nature …, 2019 - nature.com
Symmetries of the physical world have guided formulation of fundamental laws, including
relativistic quantum field theory and understanding of possible states of matter. Topological …

Light Higgs channel of the resonant decay of magnon condensate in superfluid 3He-B

VV Zavjalov, S Autti, VB Eltsov, PJ Heikkinen… - Nature …, 2016 - nature.com
In superfluids the order parameter, which describes spontaneous symmetry breaking, is an
analogue of the Higgs field in the Standard Model of particle physics. Oscillations of the field …

Visualization of quantum turbulence in superfluid : Combined numerical and experimental study of Andreev reflection

V Tsepelin, AW Baggaley, YA Sergeev, CF Barenghi… - Physical Review B, 2017 - APS
We present a combined numerical and experimental study of Andreev scattering from
quantum turbulence in superfluid He 3-B at ultralow temperatures. We simulate the evolution …

A Quasiparticle Detector for Imaging Quantum Turbulence in Superfluid He-B

SL Ahlstrom, DI Bradley, SN Fisher… - Journal of Low …, 2014 - Springer
We describe the development of a two-dimensional quasiparticle detector for use in
visualising quantum turbulence in superfluid^ 3 3 He-B at ultra-low temperatures. The …

Microkelvin Thermometry with Bose–Einstein Condensates of Magnons and Applications to Studies of the AB Interface in Superfluid He

PJ Heikkinen, S Autti, VB Eltsov, RP Haley… - Journal of Low …, 2014 - Springer
Coherent precession of trapped Bose–Einstein condensates of magnons is a sensitive
probe for magnetic relaxation processes in superfluid^ 3 3 He-B down to the lowest …

Relaxation of Bose-Einstein Condensates of Magnons in Magneto-Textural Traps in Superfluid 3He-B

PJ Heikkinen, S Autti, VB Eltsov, JJ Hosio… - Journal of Low …, 2014 - Springer
In superfluid 3 He-B externally pumped quantized spin-wave excitations or magnons
spontaneously form a Bose-Einstein condensate in a 3-dimensional trap created with the …

Quasiparticle-scattering measurements of laminar and turbulent vortex flow in the spin-down of superfluid He-

JJ Hosio, VB Eltsov, M Krusius, JT Mäkinen - Physical Review B—Condensed …, 2012 - APS
The dynamics of quantized vortices is studied in superfluid 3 He-B after a rapid stop of
rotation. We use Andreev reflection of thermal excitations to monitor vortex motion with …

On-chip quantum confinement refrigeration overcoming electron-phonon heat leaks

S Autti, JR Prance, M Prunnila - arXiv preprint arXiv:2408.11420, 2024 - arxiv.org
Circuit-based quantum devices rely on keeping electrons at millikelvin temperatures.
Improved coherence and sensitivity as well as discovering new physical phenomena …

Kelvin-Helmholtz instability of interface in superfluid

VB Eltsov, A Gordeev, M Krusius - Physical Review B, 2019 - APS
The Kelvin-Helmholtz instability is well known in classical hydrodynamics where it explains
the sudden emergence of interfacial surface waves as a function of the flow velocity parallel …