نتایج جستجو برای: quantum vortices
تعداد نتایج: 303309 فیلتر نتایج به سال:
In my research career in the field of quantum turbulence, I have been encouraged by Vinen. this article, review works motivated him and joint collaborations with him. Vinen me studies on turbulence at zero temperature, Kolmogorov spectrum a vortex tangle without mutual friction, fully coupled dynamics quantized vortices normal fluid. Joint include diffusion tangle, Kelvin wave cascade, created ...
Exciton-polaritons are light-matter mixed states interacting via their exciton fraction. They can be excited, manipulated, and detected using all the versatile techniques of modern optics. An exciton-polariton gas is therefore a unique platform to study out-of-equilibrium interacting quantum fluids. In this work, we report the formation of a ring-shaped array of same sign vortices after injecti...
The phase difference φ across a Josephson junction is considered for a film with a thickness d λ, where λ is the London penetration depth in the superconducting banks. Special attention is given to the case of a critical current density jc varying along the junction. It is shown that a nonlinear integro-differential equation determines the spatial distribution of φ for d λ. Josephson properties...
Local polarization of a magnetic layer, a well-known method for storing information, has found its place in numerous applications such as the popular magnetic drawing board toy or the widespread credit cards and computer hard drives. Here we experimentally show that a similar principle can be applied for imprinting the trajectory of quantum units of flux (vortices), travelling in a superconduct...
We study theoretically the dynamics of charged quantized vortices (CQVs). CQVs (ion-vortex complexes) have been used as an important probe in the field of quantum hydrodynamics. Recent experimental studies of quantum turbulence at very low temperatures utilize CQVs. In this work we propose the equation of motion of CQVs based on the vortex filament model. An analytical solution for a charged vo...
Vinen's vibrating wire experiment detected quantized vortices in superfluid 4He, with the anticipated circulation quantum h/m. In addition to this main result, Vinen used his data propose other properties and behaviors of vortices, which are revisited here. Subsequent work confirmed that non-quantized values occur when cover only part wire's length, size covered section can change easily. Any m...
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