Zobrazeno 1 - 10
of 109
pro vyhledávání: '"Rysti, J."'
Autor:
Rysti, J.
Quench heaters are often an essential part of protecting a superconducting accelerator magnet during a quench. Their purpose is to spread the quench throughout the coil as quickly as possible. They are located in areas of high magnetic fields and are
Externí odkaz:
http://arxiv.org/abs/2407.19830
Publikováno v:
Phys. Rev. Research 2, 033013 (2020)
A common property of topological systems is the appearance of topologically protected zero-energy excitations. In a superconductor or superfluid such states set the critical velocity of dissipationless flow $v_{\mathrm{cL}}$, proposed by Landau, to z
Externí odkaz:
http://arxiv.org/abs/2002.11492
Superconductivity and superfluidity with anisotropic pairing -- such as $d$-wave in cuprates and $p$-wave in superfluid $^3$He -- are strongly suppressed by impurities. Meanwhile, for applications, the robustness of Cooper pairs to disorder is highly
Externí odkaz:
http://arxiv.org/abs/1908.01645
Publikováno v:
Phys. Rev. Lett. 127, 115702 (2021)
The formation of topological defects in continuous phase transitions is driven by the Kibble-Zurek mechanism. Here we study the formation of single- and half-quantum vortices during transition to the polar phase of $^3$He in the presence of a symmetr
Externí odkaz:
http://arxiv.org/abs/1906.11453
In pure superfluid $^3$He-B at ultra-low temperatures, quartz tuning fork oscillator response is expected to saturate when the dissipation caused by the superfluid medium becomes substantially smaller than the internal dissipation of the oscillator.
Externí odkaz:
http://arxiv.org/abs/1807.05084
Autor:
Mäkinen, J. T., Dmitriev, V. V., Nissinen, J., Rysti, J., Volovik, G. E., Yudin, A. N., Zhang, K., Eltsov, V. B.
Publikováno v:
Nature Communications 10, Article number: 237 (2019)
Symmetries of the physical world have guided formulation of fundamental laws, including relativistic quantum field theory and understanding of possible states of matter. Topological defects (TDs) often control the universal behavior of macroscopic qu
Externí odkaz:
http://arxiv.org/abs/1807.04328
Publikováno v:
J. Low Temp. Phys. 196, 82--101 (2019)
One of the most spectacular discoveries made in superfluid $^3$He confined in a nanostructured material like aerogel or nafen was the observation of the destruction of the long-range orientational order by a weak random anisotropy. The quenched rando
Externí odkaz:
http://arxiv.org/abs/1806.08177
Autor:
Autti, S., Dmitriev, V. V., Mäkinen, J. T., Rysti, J., Soldatov, A. A., Volovik, G. E., Yudin, A. N., Eltsov, V. B.
Publikováno v:
Phys. Rev. Lett. 121, 025303 (2018)
The polar phase of $^3$He, which is topological spin-triplet superfluid with the Dirac nodal line in the spectrum of Bogolubov quasiparticles, has been recently stabilized in a nanoconfined geometry. We pump magnetic excitations (magnons) into the sa
Externí odkaz:
http://arxiv.org/abs/1711.02915
Surface waves on both superfluid 3He and 4He were examined with the premise, that these inviscid media would represent ideal realizations for this fluid dynamics problem. The work on 3He is one of the first of its kind, but on 4He it was possible to
Externí odkaz:
http://arxiv.org/abs/1504.02344
Publikováno v:
J. Low Temp. Phys. 175, 739 (2014)
A concentration-saturated helium mixture at the melting pressure consists of two liquid phases and one or two solid phases. The equilibrium system is univariant, whose properties depend uniquely on temperature. Four coexisting phases can exist on sin
Externí odkaz:
http://arxiv.org/abs/1312.4763