Zobrazeno 1 - 10
of 201
pro vyhledávání: '"Victor S. L'vov"'
Autor:
Morteza Mohseni, Vitaliy I. Vasyuchka, Victor S. L’vov, Alexander A. Serga, Burkard Hillebrands
Publikováno v:
Communications Physics, Vol 5, Iss 1, Pp 1-8 (2022)
Adding to the significant interest in quantum computing schemes, this work focuses on classical analogs for which entanglement is not required. Specifically, this work demonstrates through micromagnetic numerical simulations the use of wavevector-sel
Externí odkaz:
https://doaj.org/article/8bc2ffff3496491097cdba0efa393f1e
Autor:
Dmytro A. Bozhko, Alexander J. E. Kreil, Halyna Yu. Musiienko-Shmarova, Alexander A. Serga, Anna Pomyalov, Victor S. L’vov, Burkard Hillebrands
Publikováno v:
Nature Communications, Vol 10, Iss 1, Pp 1-9 (2019)
Exploration of magnon Bose–Einstein condensate (BEC) may enable intriguing applications in magnonic devices. Here the authors show experimentally the condensed magnons forming compact humps of BEC density can propagate many hundreds of micrometers
Externí odkaz:
https://doaj.org/article/a2e8a922340d45988ede292a04ac30cb
Publikováno v:
Philosophical transactions. Series A, Mathematical, physical, and engineering sciences
We develop a theory of strong anisotropy of the energy spectra in the thermally driven turbulent counterflow of superfluid 4He. The key ingredients of the theory are the three-dimensional differential closure for the vector of the energy flux and the
Autor:
Alexander A. Serga, Burkard Hillebrands, Halyna Yu. Musiienko-Shmarova, Victor S. L'vov, Alexander J. E. Kreil, Anna Pomyalov, Dmytro A. Bozhko
Publikováno v:
Nature Communications, Vol 10, Iss 1, Pp 1-9 (2019)
Nature Communications
Nature Communications
A macroscopic collective motion of a Bose–Einstein condensate (BEC) is commonly associated with phenomena such as superconductivity and superfluidity, often generalised by the term supercurrent. Another type of motion of a quantum condensate is sec
Autor:
A. Girard, Sergey Nazarenko, Andrei Golov, Jean-Paul Moro, Christophe Baudet, Eleonore Rusaouen, Bernard Rousset, A. Braslau, Victor S. L'vov, F. Chilla, J. Salort, Ewe-Wei Saw, Philippe-E. Roche, M. Bon Mardion, F. Daviaud, Pantxo Diribarne, I. Moukharski, Mathieu Gibert, Basile Gallet, Bérengère Dubrulle
Publikováno v:
Golov, A & Diribarne, P 2021, ' Investigation of properties of superfluid 4He turbulence using a hot-wire signal ', Physical Review Fluids, vol. 6 . https://doi.org/10.1103/PhysRevFluids.6.094601
Physical Review Fluids
Physical Review Fluids, 2021, 6 (9), pp.094601. ⟨10.1103/PhysRevFluids.6.094601⟩
Physical Review Fluids
Physical Review Fluids, 2021, 6 (9), pp.094601. ⟨10.1103/PhysRevFluids.6.094601⟩
International audience; We report hot-wire measurements performed in two very different, co-and counter-rotating flows, in normal and superfluid helium at 1.6 K, 2 K, and 2.3 K. As recently reported, the power spectrum of the hot-wire signal in super
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::02d613a65c61c42960b3d4b9415c4270
https://doi.org/10.1103/PhysRevFluids.6.094601
https://doi.org/10.1103/PhysRevFluids.6.094601
Autor:
Anna Pomyalov, Timo B. Noack, Alexander A. Serga, Victor S. L'vov, Burkard Hillebrands, Vitaliy I. Vasyuchka
The appearance of spontaneous coherence is a fundamental feature of a Bose-Einstein condensate and an essential requirement for possible applications of the condensates for data processing and quantum computing. In the case of a magnon condensate in
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c99f4f1f8f2511b40a5af00a15d3d6dc
We report an exact unique constant-flux power-law analytical solution of the wave kinetic equation for the turbulent energy spectrum, $E(k)=C_1 \sqrt{\varepsilon\, a c_{\rm s} }/k$, of acoustic waves in 2D with almost linear dispersion law, $\omega_k
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::adb0073828aaee30aaf06da7ffa62156
We develop an analytic theory of strong anisotropy of the energy spectra in the thermally-driven turbulent counterflow of superfluid He-4. The key ingredients of the theory are the three-dimensional differential closure for the vector of the energy f
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::5fb9a163ad06b8c2c36e3fd68d52e4c0
We use particle tracking velocimetry to study Eulerian and Lagrangian second-order statistics of superfluid $^4$He grid turbulence. The Eulerian energy spectra at scales larger than the mean distance between quantum vortex lines behave classically wi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a49125805d2f6daa2ec55fb552f2bb96
Autor:
Vladimir Eltsov, Victor S. L'vov
Development of experimental techniques to study superfluid dynamics, in particular, application of nanomechanical oscillators to drive vortex lines, enables potential observation of the Kelvin-wave cascade on quantized vortices. One of the first ques
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f2b95a6ff80a02abe01260b3b3b42e61