▪ Abstract Laser ablation of in situ metals has recently made it possible to immerse a large
number of different metal atoms and ions and small clusters of metal atoms in liquid helium …

A nonneutral plasma is a many-body collection of charged particles in which there is not
overall charge neutrality. The diverse areas of application of nonneutral plasmas include …

The basic physics regarding self-trapping of light particles in simple fluid hosts is reviewed
pedagogically. Electron and positronium self-trapping in fluid helium is taken as a historical …

We study the possible formation of large (mesoscopic) molecular ions in an ultracold
degenerate bosonic gas doped with charged particles (ions). We show that the polarization …

In this study, for the first time, the Schrödinger equation with more general exponential
cosine screened Coulomb (MGECSC) potential is solved numerically in the presence and in …

In the last two decades, two‐dimensional systems have been found to exhibit phases and
phase transitions unlike any seen in their three‐dimensional counterparts. Quantization of …

The results are reported of experiments on two-dimensional pools of positive and negative
ions trapped below the surface of superfluid 4He. The results of detailed computations on …

Preliminary results are reported of experiments on a two-dimensional pool of negative ions
trapped below the surface of superfluid 4 He. The observation of plasma resonances in such …

Crystallization of a 2D pool of helium ions trapped beneath the surface of superfluid helium
has been detected. The ions are driven with an RF electric field, and absorption peaks are …

The ponderomotive effects which arise in a single species plasma, ie, a nonneutral plasma,
are considered. The important difference from a neutral plasma is that quasineutral density …