Progress in the ability to accumulate and cool positrons and antiprotons is enabling new
scientific and technological opportunities. The driver for this work is plasma physics research …

Abstract The Antiproton Decelerator (AD) facility of CERN began operation in 1999 to serve
experiments for studies of CPT invariance by precision laser and microwave spectroscopy of …

Antimatter was first predicted in 1931, by Dirac. Work with high-energy antiparticles is now
commonplace, and anti-electrons are used regularly in the medical technique of positron …

The antihydrogen formation by charge exchange between cold antiprotons and Rydberg
positronium P s* is studied by using the classical trajectory Monte Carlo method. In the …

We have demonstrated storage of plasmas of the charged constituents of the antihydrogen
atom, antiprotons and positrons, in a Penning trap surrounded by a minimum-B magnetic …

We consider non-relativistic systems in quantum mechanics interacting through the
Coulomb potential, and discuss the existence of bound states which are stable against …

An antihydrogen (H¯) atom—a positron (e+) in orbit about an antiproton (p¯)—is the
simplest atom made entirely of antimatter. Producing H¯ atoms that are cold enough to be …

Antihydrogen is formed when antiprotons are mixed with cold positrons in a nested Penning
trap. We present experimental evidence, obtained using our antihydrogen annihilation …

Cold Rydberg atoms exposed to strong magnetic fields possess unique properties which
open the pathway for an intriguing many-body dynamics taking place in Rydberg gases …

One possible route for a precision test of the CPT theorem is to perform spectroscopic
measurements on the antihydrogen atom and compare the results with those from hydrogen …