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Related papers: Note on "Dynamics of Quantum Vorticity in a Random…

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Quantum vortices, the quantized version of classical vortices, play a prominent role in superfluid and superconductor phase transitions. However, their exploration at a particle level in open quantum systems has gained considerable…

I study the dynamics of a superfluid vortex in a random potential, as in the inner crust of a neutron star. Below a critical flow velocity of the ambient superfluid, a vortex is effectively immobilized by lattice forces even in the limit of…

Astrophysics · Physics 2009-11-13 Bennett Link

Quantum vorticity in polariton systems has been traditionally investigated within the frame of many-body phenomena under the mean-field or coherent approaches. In the present work, we show that the fully quantized picture describes richer…

We study the motion of superfluid vortices with filled massive cores. Previous point-vortex models already pointed out the impact of the core mass on the vortex dynamical properties, but relied on an assumption that is questionable in many…

Quantum Gases · Physics 2023-09-06 Alice Bellettini , Andrea Richaud , Vittorio Penna

The contribution to the vortex lattice energy which is due to the vortex-induced strains is calculated covering all the magnetic field range which defines the vortex state. This contribution is compared with previously reported ones what…

Superconductivity · Physics 2016-08-31 A. Cano , A. P. Levanyuk , S. A. Minyukov

Vortex lattices are constructed in terms of linear combinations of solutions for Scr\"{o}dinger equation with a constant potential. The vortex lattices are mapped on the spaces with two-dimensional rotationally symmetric potentials by using…

Superconductivity · Physics 2016-08-31 Tsunehiro Kobayashi

We show that the strain-induced attraction between Abrikosov vortices has a non-core contribution overlooked up until now. This contribution is an example of the universal mechanism of soliton attraction in solids revealed in [Phys. Rev. B…

Superconductivity · Physics 2007-05-23 A. Cano , A. P. Levanyuk , S. A. Minyukov

We consider the detailed dynamics of an array of quantised superfluid vortices in the framework of general relativity, as required for quantitative modelling of realistic neutron star cores. Our model builds on the variational approach to…

General Relativity and Quantum Cosmology · Physics 2016-12-07 N. Andersson , S. Wells , J. A. Vickers

Vortex reconnections plays an important role in the turbulent flows associated with the superfluids. To understand the dynamics, we examine the reconnections of vortex rings in the superfluids of dilute atomic gases confined in trapping…

Quantum Gases · Physics 2014-08-08 S. Gautam , K. Suthar , D. Angom

In the context of General Relativity, radiation, either gravitational or electromagnetic, is closely associated to vorticity of observers world lines. We stress in this letter that the factor that relates the two phenomena is a circular…

General Relativity and Quantum Cosmology · Physics 2013-12-24 L. Herrera

The fundamental mode of rotation in quantum fluids is given by a vortex, whose quantized value yields the orbital angular momentum (OAM) per particle. If the vortex is displaced (off-centered) from the reference point for rotation, the…

A magnetic nanoparticle in a vortex state is a promising candidate for the information storage. One bit of information corresponds to the upward or downward magnetization of the vortex core (vortex polarity). Generic properties of the…

Strongly Correlated Electrons · Physics 2009-11-13 Yuri B. Gaididei , Volodymyr P. Kravchuk , Franz G. Mertens , Denis D. Sheka

For a model with isotropic nearest neighbor exchange combined with easy-plane exchange or single-ion anisotropies, the static effects of a magnetic vacancy site on a nearby magnetic vortex are analyzed on square, hexagonal and triangular…

Materials Science · Physics 2013-05-08 G. M. Wysin

An experimental study is reported which investigates the head-on collision of a laminar vortex ring of diameter D (Re{\Gamma}= 3000) on a fakir-like surface composed of circular posts of height h*=0.068 located on a planar bed. Lattices of…

Fluid Dynamics · Physics 2018-07-04 Qianhui Li , Christoph Bruecker

Vortex has been considered as the building block and muscle of turbulence for long time. A new physical quantity called Liutex (previously named Rortex) has been defined as the rigid rotation part of fluid motion. From DNS and experiment,…

Fluid Dynamics · Physics 2019-05-09 Jian-ming Liu , Yue Deng , Yi-sheng Gao , Sita Charkrit , Chaoqun Liu

We investigate the equilibrium and nonequilibrium properties of the core region of vortices in layered superconductors. We discuss the electronic structure of singly and doubly quantized vortices for both s-wave and d-wave pairing symmetry.…

Superconductivity · Physics 2008-06-29 M. Eschrig , D. Rainer , J. A. Sauls

The structure of a vortex in the inner crust of neutron stars is calculated within the framework of quantum mean field theory taking into account the interaction with the nuclei composing the Coulomb lattice. Making use of the results…

Astrophysics · Physics 2009-06-23 P. Avogadro , F. Barranco , R. A. Broglia , E. Vigezzi

Vortices are pervasive in nature, representing the breakdown of laminar fluid flow and hence playing a key role in turbulence. The fluid rotation associated with a vortex can be parameterized by the circulation $\Gamma=\oint {\rm d}{\bf…

Other Condensed Matter · Physics 2015-05-13 N. G. Parker , B. Jackson , A. M. Martin , C. S. Adams

We investigate the influence of artificial defects (small holes) inserted into magnetic nanodisks on the vortex core dynamics. One and two holes (antidots) are considered. In general, the core falls into the hole but, in particular, we…

Mesoscale and Nanoscale Physics · Physics 2011-08-05 R. L. Silva , A. R. Pereira , W. A. Moura-Melo , R. C. Silva , N. M. Oliveira-Neto , S. A. Leonel , P. Z. Coura

The statistics of the field structure in the vortex core surrounding phase singularities in random wave fields are measured and calculated for diffusive and localized waves. Excellent agreement is found between experiment and theory. The…

Mesoscale and Nanoscale Physics · Physics 2009-11-13 Sheng Zhang , Azriel Z Genack
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