English
Related papers

Related papers: Multiple Half-Quantum Vortices in Rotating Superfl…

200 papers

We have theoretically investigated the structure of spinning self-bound droplets made of $^{41}$K-$^{87}$Rb Bose mixture by solving the Gross-Pitaevskii equation including beyond-mean-field correction in the Lee-Huang-Yang form. The…

Quantum Gases · Physics 2022-07-13 Matteo Caldara , Francesco Ancilotto

In two dimensions a vortex lattice can melt by quantum fluctuations into a non-superfluid Quantum Vortex Liquid (QVL). To determine the melting conditions, we compute the bare vortex hopping rate by exact diagonalization of square clusters…

Superconductivity · Physics 2010-01-12 Netanel H. Lindner , Assa Auerbach , Daniel P. Arovas

We present an asymptotic analysis of the effects of rapid rotation on the ground state properties of a superfluid confined in a two-dimensional trap. The trapping potential is assumed to be radial and homogeneous of degree larger than two…

Mathematical Physics · Physics 2012-05-18 Michele Correggi , Florian Pinsker , Nicolas Rougerie , Jakob Yngvason

A vortex in a superfluid gas inside an optical lattice can behave as a massive particle moving in a periodic potential and exhibiting quantum properties. In this Letter we discuss these properties and show that the excitation of vortex…

Soft Condensed Matter · Physics 2007-09-27 P. Vignolo , R. Fazio , M. P. Tosi

Superconducting Nb thin films with rectangular arrays of submicron antidots have been systemically investigated by transport measurements. In low fields, the magnetoresistance curves demonstrate well-defined dips at integral and rational…

Mesoscale and Nanoscale Physics · Physics 2012-03-05 W. J. Zhang , S. K. He , H. F. Liu , G. M. Xue , H. Xiao , B. H. Li , Z. C. Wen , X. F. Han , S. P. Zhao , C. Z. Gu , X. G. Qiu , Victor V. Moshchalkov

We analyze two-component spatial optical vortex solitons supported by parametric wave mixing processes in a nonlinear bulk medium. We study two distinct cases of such localised waves, namely, parametric vortex solitons due to phase-matched…

Turbulence in superfluids depends crucially on the dissipative damping in vortex motion. This is observed in the B phase of superfluid 3He where the dynamics of quantized vortices changes radically in character as a function of temperature.…

Soft Condensed Matter · Physics 2009-11-11 V. B. Eltsov , M. Krusius , G. E. Volovik

We calculate the local density of states of a vortex in a two-dimensional s-wave superconductor, in the presence of a uniform applied supercurrent. The supercurrent induces changes in the electronic structure for the isolated vortex as well…

Superconductivity · Physics 2013-10-24 C. Berthod

We discuss a simple and experimentally available realization of fracton physics. We note that superfluid vortices form a Hamiltonian system that conserves total dipole moment and trace of the quadrupole moment of vorticity; thereby…

Strongly Correlated Electrons · Physics 2020-05-08 Darshil Doshi , Andrey Gromov

Relativistic equation of state and velocity comparable with the speed of light are included in consideration of a superfluid rotating in a cylindrical container. Minimizing the free energy, we derive the equation of motion. It admits an…

High Energy Physics - Phenomenology · Physics 2007-05-23 G. Vlasov

The driven state of a well-ordered flux line lattice in a single crystal of 2H-NbSe2 in the time domain has revealed the presence of substantial fluctuations in velocity, with large and distinct time periods (~ seconds). A superposition of…

Superconductivity · Physics 2015-05-14 Shyam Mohan , Jaivardhan Sinha , S. S. Banerjee , A. K. Sood , S. Ramakrishnan , A. K. Grover

The interaction between a superconducting vortex in a type II superconducting film (SC) and a ferromagnet (FM) with out-of-plane magnetization is investigated theoretically within the London approximation. The dependence of the interaction…

Superconductivity · Physics 2009-11-10 M. V. Milosevic , F. M. Peeters

Vortices in spin-$0$ superfluids generically carry magnetic fields inside their cores, so that even neutral superfluid vortices may be thought of as magnetic flux tubes. We give a systematic analysis of this `vortex magnetic effect' using…

Quantum Gases · Physics 2022-05-02 Aleksey Cherman , Theodore Jacobson , Srimoyee Sen , Laurence G. Yaffe

We study vortex pattern formation in thin ferromagnetic films under the action of strong spin-polarized currents. Considering the currents which are polarized along the normal of the film plane, we determine the critical current above which…

Strongly Correlated Electrons · Physics 2013-05-30 Yuri Gaididei , Oleksii M. Volkov , Volodymyr P. Kravchuk , Denis D. Sheka

A complete study of the propagation of waves (namely longitudinal density and temperature waves, longitudinal and transversal velocity waves and heat waves) in turbulent superfluid helium is made in three situations: a rotating frame, a…

Other Condensed Matter · Physics 2015-05-19 Rosa Anna Peruzza , Michele Sciacca

The motion of a quantized vortex is intimately connected with its microscopic structure and the elementary excitations of the surrounding fluid. In this work, we investigate the two-dimensional motion of a single vortex orbiting a pinned…

In a type II superconductor in a moderate magnetic field, the superconductor to normal state transition may be described as a phase transition in which the vortex lattice melts into a liquid. In a biaxial superconductor, or even a uniaxial…

Superconductivity · Physics 2009-11-07 E. W. Carlson , A. H. Castro Neto , D. K. Campbell

We show that vortex nucleation in superfluid $^3$He by rapid thermal quench in the presence of superflow is dominated by a transverse instability of the moving normal-superfluid interface. Exact expressions for the instability threshold as…

Superconductivity · Physics 2016-08-31 I. S. Aranson , N. B. Kopnin , V. M. Vinokur

Superfluid $^3$He-B possesses three locally stable vortices known as a normal-core vortex ($o$-vortex), an A-phase-core vortex ($v$-vortex), and a double-core vortex ($d$-vortex). In this work, we study the effects of a magnetic field…

Superconductivity · Physics 2019-03-27 Kenichi Kasamatsu , Ryota Mizuno , Tetsuo Ohmi , Mikio Nakahara

We discuss a novel type of fractional flux vortices along with integer flux vortices in Kosterlitz-Thouless transitions in a triplet superconductor. We show that under certain conditions a spin-triplet superconductor should exhibit a novel…

Superconductivity · Physics 2007-05-23 Egor Babaev