Zobrazeno 1 - 10
of 20
pro vyhledávání: '"Golov A"'
Autor:
Diribarne, P., Bon-Mardion, M., Girard, A., Moro, J. -P., Rousset, B., Chilla, F., Salort, J., Braslau, A., Daviaud, F., Dubrulle, B., Gallet, B., Moukharski, I., Saw, E. -W., Baudet, C., Gibert, M., Roche, P. -E., Rusaouen, E., Golov, A., L'vov, V., Nazarenko, S.
Publikováno v:
Physical Review Fluids
Physical Review Fluids, American Physical Society, 2021, 6 (9), pp.094601. ⟨10.1103/PhysRevFluids.6.094601⟩
Physical Review Fluids, American Physical Society, 2021, 6 (9), pp.094601. ⟨10.1103/PhysRevFluids.6.094601⟩
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 superfluid flows exhibits a
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::42a7d37fe61d90ec5d3aefbc1cdbb41e
https://hal-cea.archives-ouvertes.fr/cea-03329835
https://hal-cea.archives-ouvertes.fr/cea-03329835
Autor:
Guo, Wei, Golov, Andrei I.
Metastable He$_{2}^{*}$ excimer molecules have been utilized as tracer particles of the normal component in superfluid $^4$He (He II) which can be imaged via laser-induced fluorescence. These excimer molecules form tiny bubbles in He II and can bind
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f89f53273a1fc966446e28539dd30b7c
Autor:
Anton V. Golov, Vasily V. Temnov, V. S. Vlasov, Igor V. Bychkov, Alexandr Alekhin, Dmitry A. Kuzmin, Leonid N. Kotov, Valentin Besse
Publikováno v:
Journal of Magnetism and Magnetic Materials
Journal of Magnetism and Magnetic Materials, Elsevier, 2020, 502, pp.166320. ⟨10.1016/j.jmmm.2019.166320⟩
Journal of Magnetism and Magnetic Materials, Elsevier, 2020, 502, pp.166320. ⟨10.1016/j.jmmm.2019.166320⟩
International audience; We investigate generation of exchange magnons by ultrashort, picosecond acoustic pulses propagating through ferromagnetic thin films. Using the Landau-Lifshitz-Gilbert equations we derive the dispersion relation for exchange m
Autor:
Walmsley, P. M., Golov, A. I.
Tangles of quantized vortex line of initial density ${\cal L}(0) \sim 6\times 10^3$\,cm$^{-2}$ and variable amplitude of fluctuations of flow velocity $U(0)$ at the largest length scale were generated in superfluid $^4$He at $T=0.17$\,K, and their fr
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::3337fa70862f4cf192ee9eba723f9027
http://arxiv.org/abs/1703.03645
http://arxiv.org/abs/1703.03645
Publikováno v:
Walmsley, P, Zmeev, D, Pakpour, F & Golov, A 2014, ' Dynamics of quantum turbulence of different spectra ', Proceedings of the National Academy of Sciences of the United States of America, vol. 111, no. 1, pp. 4691-4698 . https://doi.org/10.1073/pnas.1312544110
Turbulence in a superfluid in the zero-temperature limit consists of a dynamic tangle of quantized vortex filaments. Different types of turbulence are possible depending on the level of correlations in the orientation of vortex lines. We provide an o
Publikováno v:
Zhu, T, Evans, M, Brown, R, Walmsley, P & Golov, A 2016, ' Interactions between unidirectional quantized vortex rings ', Physical Review Fluids, vol. 1, no. 4 . https://doi.org/10.1103/PhysRevFluids.1.044502
We have used the vortex filament method to numerically investigate the interactions between pairs of quantized vortex rings that are initially traveling in the same direction but with their axes offset by a variable impact parameter. The interaction
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::9124fff1e78dfefbbe1b0442602395cd
https://www.research.manchester.ac.uk/portal/en/publications/interactions-between-unidirectional-quantized-vortex-rings(6b3dd69f-5bd3-4462-a53c-ad2db2f0a538).html
https://www.research.manchester.ac.uk/portal/en/publications/interactions-between-unidirectional-quantized-vortex-rings(6b3dd69f-5bd3-4462-a53c-ad2db2f0a538).html
We have measured the response of a torsional oscillator containing polycrystalline hcp solid $^{4}$He to applied steady rotation in an attempt to verify the observations of several other groups that were initially interpreted as evidence for macrosco
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b4fc54a3862580d56e612707a5213672
https://aaltodoc.aalto.fi/handle/123456789/24987
https://aaltodoc.aalto.fi/handle/123456789/24987
Autor:
Andrei Golov, D. E. Zmeev, Shaun N. Fisher, Peter V. E. McClintock, P. M. Walmsley, W. F. Vinen
Publikováno v:
Zmeev, D E, Walmsley, P, Golov, A I, McClintock, P V E, Fisher, S N & Vinen, W F 2015, ' Dissipation of Quasiclassical Turbulence in Superfluid 4He ', Physical Review Letters, vol. 115, no. 15, 115303 . https://doi.org/10.1103/PhysRevLett.115.155303
We compare the decay of turbulence in superfluid $^4$He produced by a moving grid to the decay of turbulence created by either impulsive spin-down to rest or by intense ion injection. In all cases the vortex line density $L$ decays at late time $t$ a
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::94b60e0d3ff305d7f3f3367273db52ac
https://doi.org/10.1103/PhysRevLett.115.155303
https://doi.org/10.1103/PhysRevLett.115.155303
Publikováno v:
Physical Review B: Condensed Matter and Materials Physics (1998-2015)
Physical Review B: Condensed Matter and Materials Physics (1998-2015), American Physical Society, 2014, 90 (2), pp.024508. ⟨10.1103/PhysRevB.90.024508⟩
Physical Review B: Condensed Matter and Materials Physics (1998-2015), American Physical Society, 2014, 90 (2), pp.024508. ⟨10.1103/PhysRevB.90.024508⟩
A nuclear capture reaction of a single neutron by ultra-cold superfluid $^3$He results in a rapid overheating followed by the expansion and subsequent cooling of the hot subregion, in a certain analogy with the Big Bang of the early Universe. It was
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::96d55b9605c0a6bd07a523499e0bad1e
https://hal.archives-ouvertes.fr/hal-01341199
https://hal.archives-ouvertes.fr/hal-01341199
Collisions in a beam of unidirectional quantized vortex rings of nearly identical radii $R$ in superfluid $^4$He in the limit of zero temperature (0.05 K) were studied using time-of-flight spectroscopy. Reconnections between two primary rings result
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::143c392a5b7160743a56a27a571bbb8f
http://arxiv.org/abs/1308.6171
http://arxiv.org/abs/1308.6171