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Related papers: Soliton-limited Superflow in 3He-A between Paralle…

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We study theoretically the stability of flow in superfluid 3He-A. The calculations are done using a one-dimensional model where the order parameter depends only on the coordinate in the direction of the superfluid velocity v_s. We…

Condensed Matter · Physics 2009-10-31 J. Kopu , R. Hänninen , E. V. Thuneberg

We discuss the general properties of periodic vortex arrangements in rotating superfluids. The different possible structures are classified according to the symmetry space-groups and the circulation number. We calculate numerically several…

Condensed Matter · Physics 2016-08-31 J. M. Karimaki , E. V. Thuneberg

Superfluid 3He-A has domain-wall-like structures, which are called solitons. We calculate numerically the structure of a splay soliton. We study the effect of solitons on the nuclear-magnetic-resonance spectrum by calculating the frequency…

Condensed Matter · Physics 2009-11-07 R. Hänninen , E. V. Thuneberg

Rapid new developments have occurred in superfluid hydrodynamics since the discovery of a host of unusual phenomena which arise from the diverse structure and dynamics of quantized vortices in 3He superfluids. These have been studied in…

Superconductivity · Physics 2011-02-28 A. P. Finne , V. B. Eltsov , R. Hanninen , N. B. Kopnin , J. Kopu , M. Krusius , M. Tsubota , G. E. Volovik

The determination of the texture of the order parameter is important for understanding many experiments in superfluid 3He. In addition to reviewing the theory of textures in superfluid 3He-B we give several new results, in particular on the…

Superconductivity · Physics 2007-05-23 E. V. Thuneberg

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 velocity of flow parallel to the interface. It can be carried over to the…

Superconductivity · Physics 2019-02-13 V. B. Eltsov , A. Gordeev , M. Krusius

We have found the precise stability region of the half quantum vortex (HQV) for superfluid $^3$He A phase confined in parallel plates with a narrow gap under rotation. Standard Ginzburg-Landau free energy, which is well established, is…

Superconductivity · Physics 2009-11-13 T. Kawakami , Y. Tsutsumi , K. Machida

The first realization of instabilities in the shear flow between two superfluids is examined. The interface separating the A and B phases of superfluid He-3 is magnetically stabilized. With uniform rotation we create a state with…

Superfluid 3He-A displays the largest variety in vortex structure among the presently known coherent quantum systems. The experimentally verified information comes mostly from NMR measurements on the rotating fluid, from which the…

Condensed Matter · Physics 2007-05-23 R. Blaauwgeers , V. B. Eltsov , M. Krusius , J. Ruohio , R. Schanen

The Kelvin-Helmholtz instability in superfluids is discussed, based on the first experimental observation of such instability at the interface between superfluid 3He-A and superfluid 3He-B (cond-mat/0111343). We discuss why (i) the…

Condensed Matter · Physics 2009-11-07 G. E. Volovik

Measurements of the order parameter texture of rotating superfluid 3He-B have been performed as a function of the applied azimuthal counterflow velocity down to temperatures of 0.2Tc. The results are compared to the hydrostatic theory of…

Quantum Physics · Physics 2015-03-17 R. de Graaf , V. B. Eltsov , J. J. Hosio , P. J. Heikkinen , M. Krusius

Random textures of the orbital part of the order parameter of superfluid 3He-A in aerogel are analyzed theoretically in the Ginzburg and Landau region both in the presence and in the absence of a global anisotropy. Correlation functions of…

Superconductivity · Physics 2017-10-18 E. V. Surovtsev , I. A. Fomin

Predictions and discoveries of new phases of superfluid $^3$He in confined geometries, as well as novel topological excitations confined to surfaces and edges of near a bounding surface of $^3$He, are driving the fields of superfluid $^3$He…

Superconductivity · Physics 2013-11-19 J. J. Wiman , J. A. Sauls

This work studies the effects of a through-flow on two-dimensional electrohydrodynamic (EHD) flows of a dielectric liquid confined between two plane plates, as a model problem to further our understanding of the fluid mechanics in the…

Fluid Dynamics · Physics 2022-02-03 Zhe Feng , Dongdong Wan , Bo-Fu Wang , Mengqi Zhang

This article presents a phenomenological dynamic phase transition theory -- modeling and analysis -- for liquid helium-3. We derived two new models, for liquid helium-3 with or without applied field, by introducing three wave functions and…

Other Condensed Matter · Physics 2009-03-12 Tian Ma , Shouhong Wang

We analyse the analog of the Kelvin-Helmholtz instability on free suface of a superfluid liquid. This instability is induced by the relative motion of superfluid and normal components of the same liquid along the surface. The instability…

Condensed Matter · Physics 2007-05-23 S. E. Korshunov

Motivated by the on-going rotating cryostat experiments in ISSP, Univ. of Tokyo, we explore the textures and vortices in superfluid 3He-A phase confined in narrow cylinders, whose radii are R=50mum and 115mum. The calculations are based on…

Superconductivity · Physics 2015-05-13 Y. Tsutsumi , K. Machida

We study a two-phase sample of superfluid 3He where vorticity exists in one phase (3He-A) but cannot penetrate across the interfacial boundary to a second coherent phase (3He-B). We calculate the bending of the vorticity into a surface…

Condensed Matter · Physics 2009-11-10 R. Hänninen , R. Blaauwgeers , V. B. Eltsov , A. P. Finne , M. Krusius , E. V. Thuneberg , G. E. Volovik

We explore the far from equilibrium response of a holographic superfluid using the AdS/CFT correspondence. We establish the dynamical phase diagram corresponding to quantum quenches of the order parameter source field. We find three…

High Energy Physics - Theory · Physics 2015-06-05 M. J. Bhaseen , Jerome P. Gauntlett , B. D. Simons , Julian Sonner , Toby Wiseman

Highly anisotropic "nematically ordered" aerogel induces global uniaxial anisotropy in superfluid 3He. The anisotropy lowers symmetry of 3He in aerogel from spherical to axial. As a result instead of one transition temperature in the state,…

Disordered Systems and Neural Networks · Physics 2015-06-18 I. A. Fomin
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