Plasmas consisting exclusively of particles with a single sign of charge (eg, pure electron
plasmas and pure ion plasmas) can be confined by static electric and magnetic fields (in a …

Fully controllable ultracold atomic systems are creating opportunities for quantum sensing,
yet demonstrating a quantum advantage in useful applications by harnessing entanglement …

Quantum simulation of spin models can provide insight into problems that are difficult or
impossible to study with classical computers. Trapped ions are an established platform for …

Over the last quarter of this century, revolutionary advances have been made both in kind
and in precision in the application of particle traps to the study of thephysics of charged …

Laser-cooled 9Be+ ions confined in two-dimensionally extended lattice planes were directly
observed, and the images were used to characterize the structural phases of the ions. Five …

Positrons (ie, antielectrons) find use in a wide variety of applications, and antiprotons are
required for the formation and study of antihydrogen. Available sources of these antiparticles …

We present a detailed experimental study of the Uhrig dynamical decoupling (UDD)
sequence in a variety of noise environments. Our qubit system consists of a crystalline array …

We present an experiment to sympathetically cool single protons and antiprotons in a
Penning trap by resonantly coupling the particles to laser cooled beryllium ions using a …

Improving coherence is a fundamental challenge in quantum simulation and sensing
experiments with trapped ions. Here we discuss, experimentally demonstrate, and estimate …

Laser-cooled atomic ions form ordered structures in radiofrequency ion traps and in Penning
traps. Here we demonstrate in a Penning trap the creation and manipulation of a wide …