Search Results - "KRUSIUS, M"

Quartz Tuning Fork: Thermometer, Pressure- and Viscometer for Helium Liquids by Blaauwgeers, R., Blazkova, M., Človečko, M., Eltsov, V. B., de Graaf, R., Hosio, J., Krusius, M., Schmoranzer, D., Schoepe, W., Skrbek, L., Skyba, P., Solntsev, R. E., Zmeev, D. E.

“…Commercial quartz oscillators of the tuning-fork type with a resonant frequency of ∼ 32 kHz have been investigated in helium liquids. The oscillators are found…”
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Self-trapping of magnon Bose-Einstein condensates in the ground state and on excited levels: from harmonic to box confinement by Autti, S, Bunkov, Yu M, Eltsov, V B, Heikkinen, P J, Hosio, J J, Hunger, P, Krusius, M, Volovik, G E

“…Long-lived coherent spin precession of (3)He-B at low temperatures around 0.2T(c) is a manifestation of Bose-Einstein condensation of spin-wave excitations or…”
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Energy and angular momentum balance in wall-bounded quantum turbulence at very low temperatures by Hosio, J. J., Eltsov, V. B., Heikkinen, P. J., Hänninen, R., Krusius, M., L’vov, V. S.

“…A superfluid in the absence of a viscous normal component should be the best realization of an ideal inviscid Euler fluid. As expressed by d’Alembert’s famous…”
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An intrinsic velocity-independent criterion for superfluid turbulence by Volovik, G. E, Finne, A. P, Araki, T, Blaauwgeers, R, Eltsov, V. B, Kopnin, N. B, Krusius, M, Skrbek, L, Tsubota, M

“…Hydrodynamic flow in classical and quantum fluids can be either laminar or turbulent. Vorticity in turbulent flow is often modelled with vortex filaments…”
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Shear flow and Kelvin-Helmholtz instability in superfluids by Blaauwgeers, R, Eltsov, V B, Eska, G, Finne, A P, Haley, R P, Krusius, M, Ruohio, J J, Skrbek, L, Volovik, G E

“…The first realization of instabilities in the shear flow between two superfluids is examined. The interface separating the A and B phases of superfluid 3He is…”
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Superfluid vortex front at T→0: decoupling from the reference frame by Hosio, J J, Eltsov, V B, de Graaf, R, Heikkinen, P J, Hänninen, R, Krusius, M, L'vov, V S, Volovik, G E

“…Steady-state turbulent motion is created in superfluid (3)He-B at low temperatures in the form of a turbulent vortex front, which moves axially along a…”
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Quantum turbulence in a propagating superfluid vortex front by Eltsov, V B, Golov, A I, de Graaf, R, Hänninen, R, Krusius, M, L'vov, V S, Solntsev, R E

“…We present experimental, numerical, and theoretical studies of a vortex front propagating into a region of vortex-free flow of rotating superfluid 3He-B. We…”
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Thermal Detection of Turbulent and Laminar Dissipation in Vortex Front Motion by Hosio, J. J., Eltsov, V. B., Krusius, M.

“…We report on direct measurements of the energy dissipated in the spin-up of the superfluid component of 3 He-B. A vortex-free sample is prepared in a…”
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Vibrating Quartz Fork—A Tool for Cryogenic Helium Research by Blažková, M., Človečko, M., Eltsov, V. B., Gažo, E., de Graaf, R., Hosio, J. J., Krusius, M., Schmoranzer, D., Schoepe, W., Skrbek, L., Skyba, P., Solntsev, R. E., Vinen, W. F.

“…Oscillating objects such as discs, piles of discs, spheres, grids and wires have been widely used in cryogenic fluid dynamics and in quantum fluids research…”
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Andreev reflection in rotating superfluid 3He-B by Eltsov, V. B., Hosio, J. J., Krusius, M., Mäkinen, J. T.

“…Andreev reflection of quasiparticle excitations from quantized line vortices is reviewed in the isotropic B phase of superfluid 3 He in the temperature regime…”
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Vortices and other topological defects in non-equilibrium phase transitions of superfluid 3He by Eltsov, V.B., Hänninen, R., Krusius, M.

“…Rapidly evolving non-equilibrium phenomena, associated with phase transitions from meta-stable states, provide examples of most complex dynamics. Condensed…”
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Twisted vortex state by Eltsov, V B, Finne, A P, Hänninen, R, Kopu, J, Krusius, M, Tsubota, M, Thuneberg, E V

“…We study a twisted vortex bundle where quantized vortices form helices circling around the axis of the bundle in a "force-free" configuration. Such a state is…”
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Relaxation of Bose-Einstein Condensates of Magnons in Magneto-Textural Traps in Superfluid 3He-B by Heikkinen, P. J., Autti, S., Eltsov, V. B., Hosio, J. J., Krusius, M., Zavjalov, V. V.

“…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…”
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Vortex multiplication in applied flow: A precursor to superfluid turbulence by Finne, A P, Eltsov, V B, Eska, G, Hänninen, R, Kopu, J, Krusius, M, Thuneberg, E V, Tsubota, M

“…A surface-mediated process is identified in 3He-B which generates vortices at a roughly constant rate. It precedes a faster form of turbulence where…”
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Quantum Turbulence in a Propagating Superfluid Vortex Front by Eltsov, V. B., Golov, A. I., de Graaf, R., Hänninen, R., Krusius, M., L’vov, V. S., Solntsev, R. E.

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Textures of Superfluid 3He-B in Applied Flow and Comparison with Hydrostatic Theory by de Graaf, R., Eltsov, V. B., Heikkinen, P. J., Hosio, J. J., Krusius, M.

“…Measurements of the order parameter texture of rotating superfluid 3 He-B have been performed as a function of the applied azimuthal counterflow velocity down…”
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Vortex Core Contribution to Textural Energy in 3He–B Below 0.4Tc by Eltsov, V. B., de Graaf, R., Krusius, M., Zmeev, D. E.

“…Vortex lines affect the spatial order-parameter distribution in superfluid 3 He–B owing to superflow circulating around vortex cores and due to the interaction…”
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Vortex Formation and Annihilation in Rotating Superfluid 3He-B at Low Temperatures by Eltsov, V. B., de Graaf, R., Heikkinen, P. J., Hosio, J. J., Hänninen, R., Krusius, M.

“…In superfluid 3 He-B the damping of vortex motion varies many orders of magnitude in the currently accessible temperature range from T c to below 0.2  T c …”
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Dynamic Remanent Vortices in Superfluid He-B by Solntsev, R E, de Graaf, R, Eltsov, V B, Hanninen, R, Krusius, M

“…We investigate the decay of vortices in a rotating cylindrical sample of He-B, after rotation has been stopped. With decreasing temperature vortex annihilation…”
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Precessing Vortex Motion and Instability in a Rotating Column of Superfluid He-B by Hanninen, R, Eltsov, V B, Finne, A P, de Graaf, R, Kopu, J, Krusius, M, Solntsev, R E

“…In a rotating circular cylinder of superfluid He-B, an evolving vortex expands longitudinally such that its end point describes a helically spiralling…”
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