Results 1 to 10 of about 2,249 (157)

Massive superfluid vortices and vortex necklaces on a planar annulus

open access: yesSciPost Physics, 2023
We study a superfluid in a planar annulus hosting vortices with massive cores. An analytical point-vortex model shows that the massive vortices may perform radial oscillations on top of the usual uniform precession of their massless counterpart. Beyond a
Matteo Caldara, Andrea Richaud, Massimo Capone, Pietro Massignan
doaj   +5 more sources

In-Plane Gradient Magnetic Field-Induced Topological Defects in Rotating Spin-1 Bose–Einstein Condensates with SU(3) Spin-Orbit Coupling [PDF]

open access: yesEntropy
We study the topological defects and spin structures of rotating SU(3) spin–orbit-coupled spin F=1 Bose–Einstein condensates (BECs) in an in-plane quadrupole field with ferromagnetic spin interaction, and the BECs is confined by a harmonic trap.
Hui Yang, Peng-Yu Li, Bo Yu
doaj   +2 more sources

Macroscale multimodal imaging reveals ancient painting production technology and the vogue in Greco-Roman Egypt. [PDF]

open access: yesSci Rep, 2017
Macroscale multimodal chemical imaging combining hyperspectral diffuse reflectance (400-2500 nm), luminescence (400-1000 nm), and X-ray fluorescence (XRF, 2 to 25 keV) data, is uniquely equipped for noninvasive characterization of heterogeneous complex ...
Delaney JK   +3 more
europepmc   +4 more sources

Neutral Vortex Necklace in a Trapped Planar Superfluid [PDF]

open access: yesJournal of Low Temperature Physics, 2021
We study quantum vortex states consisting of a ring of vortices with alternating sign, in a homogeneous superfluid confined to a circular domain. We find an exact stationary solution of the point vortex model for the neutral vortex necklace. We investigate the stability of the necklace state within both the point-vortex model and the Gross-Pitaevskii ...
M. M. Cawte, M. T. Reeves, A. S. Bradley
openaire   +2 more sources

Quantum phases of rotating Raman spin–orbit-coupled dipolar Bose–Einstein condensates with Lee–Huang–Yang correction

open access: yesResults in Physics, 2023
We investigate the ground-state phases and spin textures of rotating binary dipolar Bose–Einstein condensates with Lee–Huang–Yang (LHY) correction and Raman-induced spin–orbit coupling (SOC) in a harmonic trap.
Yu Zhang   +5 more
doaj   +1 more source

Dynamics of rotating spin–orbit-coupled Bose–Einstein condensates in a quasicrystalline optical lattice

open access: yesResults in Physics, 2021
We investigate the dynamics of rotating pseudo-spin-1/2 Bose–Einstein condensates (BECs) with Rashba spin–orbit coupling (SOC) in a quasicrystalline optical lattice (QOL).
Qingbo Wang   +3 more
doaj   +1 more source

Drag force of circular cylinder blade wind turbines driven by steady lift force of longitudinal vortex

open access: yesNihon Kikai Gakkai ronbunshu, 2021
The effects of the configurations and structural parameters of the cylinder blade wind turbine driven by the steady lift force of the longitudinal vortex on its rotation and drag force characteristics were investigated.
Kasumi SAKAMOTO   +2 more
doaj   +1 more source

Generation of fluid force oscillation due to wind direction in a longitudinal vortex driven horizontal axis circular cylinder blade wind turbine

open access: yesNihon Kikai Gakkai ronbunshu, 2022
A prediction model of the fluid force on a cylindrical blade driven by the Necklace vortex is developed and verified by experiments when the yaw angle is given.
Shota NAKADA   +3 more
doaj   +1 more source

Generation of necklace-shaped high harmonics in a two-color vortex field

open access: yesOptics Express, 2021
We numerically studied gas high-harmonic generation in a two-color vortex laser field using the non-adiabatic Lewenstein model. Macroscopic responses were calculated by numerically solving the three-dimensional propagation equation in cylindrical coordinates.
Jinxing Xue   +3 more
openaire   +2 more sources

Ring Dark Solitons and Vortex Necklaces in Bose-Einstein Condensates [PDF]

open access: yesPhysical Review Letters, 2003
Phys. Rev.
Theocharis, G   +4 more
openaire   +5 more sources

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