Determination of the interactions in confined macroscopic Wigner islands: theory and experiments

Abstract

Macroscopic Wigner islands present an interesting complementary approach to explore the properties of two-dimensional confined particles systems. In this work, we characterize theoretically and experimentally the interaction between their basic components, viz., conducting spheres lying on the bottom electrode of a plane condenser. We show that the interaction energy can be approximately described by a decaying exponential as well as by a modified Bessel function of the second kind. In particular, this implies that the interactions in this system, whose characteristics are easily controllable, are the same as those between vortices in type-II superconductors.

arXiv comment8 pages, 8 figures

References in corpus (5)

• Experimental Evidence for Giant Vortex States in a Mesoscopic Superconducting Disk
• Direct Observation of Vortex Shells and Magic Numbers in Mesoscopic Superconducting Disks
• Macroscopic 2D Wigner islands
• Single file diffusion in macroscopic Wigner rings
• Local Symmetries and Order-Disorder Transitions in Small Macroscopic Wigner Islands

Cited by in corpus (5)

• Single file diffusion of macroscopic charged particles
• Single File Diffusion enhancement in a fluctuating modulated 1D channel
• Enhancement of mobilities in a pinned multidomain crystal
• Generic ordering of structural transitions in quasi-one-dimensional Wigner crystals
• Control of collective activity to crystallize an oscillator gas