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Vortex lines affect the spatial order-parameter distribution in superfluid 3He-B owing to superflow circulating around vortex cores and due to the interaction of the order parameter in the core and in the bulk as a result of superfluid…

Other Condensed Matter · Physics 2015-05-19 V. B. Eltsov , R. de Graaf , M. Krusius , D. E. Zmeev

We theoretically study a non-magnetic impurity effect on the vortex bound states of a multi-quantum vortex. The zero-energy peak of the local density of states is investigated for vortex cores with the winding numbers 2 and 4 within the…

Superconductivity · Physics 2015-06-12 Takashi Yamane , Yuki Nagai , K. Tanaka , Nobuhiko Hayashi

We study the properties of singly-quantized linear vortices in the supersolid phase of a dipolar Bose-Einstein condensate at zero temperature modeling $^{164}$Dy atoms. The system is extended in the $x-y$ plane and confined by a harmonic…

Quantum Gases · Physics 2021-03-24 Francesco Ancilotto , Manuel Barranco , Marti Pi , Luciano Reatto

Dynamics of magnetic vortex core switching in nanometer-scale permalloy disk, having a single vortex ground state, was investigated by micromagnetic modeling. When an in-plane magnetic field pulse with an appropriate strength and duration…

Mesoscale and Nanoscale Physics · Physics 2015-06-25 Q. F. Xiao , J. Rudge , B. C. Choi , Y. K. Hong , G. Donohoe

Supersolids are states of matter that spontaneously break two continuous symmetries: translational invariance due to the appearance of a crystal structure and phase invariance due to phase locking of single-particle wave functions,…

To verify the exact underlying mechanism of ultrafast vortex-core reversal as well as the vortex state stability we conducted numerical calculations of the dynamic evolution of magnetic vortices in Permalloy cylindrical nanodots under an…

Materials Science · Physics 2007-11-20 Ki-Suk Lee , Konstantin Y. Guslienko , Jun-Young Lee , Sang-Koog Kim

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

We discuss structure and geometrical characteristics of coherent vortices appearing as a result of the inverse cascade in the two-dimensional turbulence in a finite box. We demonstrate that the universal velocity profile, established…

Chaotic Dynamics · Physics 2016-03-23 Igor Kolokolov , Vladimir Lebedev

In superconductors, the search for special vortex states such as giant vortices focuses on laterally confined or nanopatterned thin superconducting films, disks, rings, or polygons. We examine the possibility to realize giant vortex states…

Superconductivity · Physics 2008-03-06 V. N. Gladilin , J. Tempere , I. F. Silvera , J. T. Devreese , V. V. Moshchalkov

This paper explores experimental and numerical investigation of the spatio-temporal dynamics of a finite-length vortex column in three dimensions using Particle Image Velocimetry (PIV) and Large Eddy Simulation (LES). The research examines…

Fluid Dynamics · Physics 2024-11-12 Swetarka Das , Dharmendra Yadav , Abhisek Kumar Gupta , Debopam Das , Ashoke De

Motivated by ongoing experimental efforts to make closed Bose-Einstein condensate (BEC) shells in microgravity environments, this work studies the energy and dynamics of singly quantized vortices on a thin spherical superfluid shell, where…

Quantum Gases · Physics 2022-02-15 Sálvio Jacob Bereta , Mônica A. Caracanhas , Alexander L. Fetter

Magnetism in the FeAs stoichiometric compounds and its interplay with superconductivity in vortex states are studied by self-consistently solving the BdG equations based on a two-orbital model with including the on-site interactions between…

Superconductivity · Physics 2009-10-08 Hong-Min Jiang , Jian-Xin Li , Z. D. Wang

We study the single-vortex solution of the t-J model within resonating-valence-bond (RVB) mean-field theory. We find two types of vortex cores, insulating and metallic, depending on the parameters of the model. The pairing order parameter…

Superconductivity · Physics 2009-10-31 Jung Hoon Han , Dung-Hai Lee

Interactions between vortices in planar superconducting films and a point magnetic dipole placed outside the film, and the creation of vortices by the dipole, are studied in the London limit. The exact solution of London equations for films…

Superconductivity · Physics 2009-11-10 Gilson Carneiro

The vibrational contribution $\mu_{v}(H)$ to the dynamic magnetic permeability is calculated allowing for the spatial variation of the order parameter in the vortex cores. The behavior of calculated dependence $\mu _{v}(H)$ is analyzed for…

Superconductivity · Physics 2007-05-23 L. G. Mamsurova , K. S. Pigalskiy , W. V. Pogosov

The nature of vortex flows in the nonequilibrium region arising in the vicinity of phase-slip lines at the S-N boundary are investigated experimentally. It is shown that vortices continue to move when charge imbalance appears in a film that…

Superconductivity · Physics 2025-02-12 A. G. Sivakov , V. G. Volotskaya

The theory of vortex motion in a dilute superfluid of inhomogeneous density demands a boundary layer approach, in which different approximation schemes are employed close to and far from the vortex, and their results matched smoothly…

Soft Condensed Matter · Physics 2009-11-07 J. R. Anglin

We employ index theoretic methods to study analytically the low energy spectrum of a lattice d-wave superconductor in the vortex lattice state. This allows us to compare singly quantized $hc/2e$ and doubly quantized $hc/e$ vortices, the…

Superconductivity · Physics 2007-05-23 Oskar Vafek , Ashot Melikyan

Using the relativistic complex scalar field model with a repulsive self-interaction, we discuss the ground state structure of charged pion condensation under the coexistence of parallel rotation and magnetic field. Our previous study found…

High Energy Physics - Phenomenology · Physics 2024-02-08 Tao Guo , Yanmei Xiao

Making use of the Bogoliubov-de Gennes equation for the d-wave superconductors, we investigate the quasi-particle spectrum around a single vortex. Taking $p_F\xi=10$, we found that there are bound states which are localized around the…

Superconductivity · Physics 2009-10-31 Masaru Kato , Kazumi Maki
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