Positronium is the simplest bound state, built of an electron and a positron. Studies of
positronium in vacuum and its decays in medium tell us about quantum electrodynamics …

We report on laser cooling of a large fraction of positronium (Ps) in free flight by strongly
saturating the 1 3 S-2 3 P transition with a broadband, long-pulsed 243 nm alexandrite laser …

Nanochanneled silicon targets with high positron/positronium (Ps) conversion rate and
efficient Ps cooling were produced. Morphological parameters of the nanochannels, such as …

We characterized the pulsed Rydberg-positronium production inside the Antimatter
Experiment: Gravity, Interferometry, Spectroscopy (AE g¯ IS) apparatus in view of …

Positronium in the 2 S 3 metastable state exhibits a low electrical polarizability and a long
lifetime (1140 ns), making it a promising candidate for interferometry experiments with a …

In this work, we discuss the possibility of inertial sensing with positronium in the 2 3 S
metastable state for the measurement of optical dipole, relativistic and gravitational forces on …

We study realistic 3D laser cooling of positronium (Ps) in the presence of a magnetic field.
Triplet and singlet states mixing due to the magnetic field, and dynamical Stark effect …

This paper reports the study of a new interferometric configuration to measure the effect of
gravity on positronium. A Mach–Zehnder matter-wave interferometer has been designed to …

In this work we describe a high-resolution position-sensitive detector for positronium. The
detection scheme is based on the photoionization of positronium in a magnetic field and the …

Silicon nanochannel plates (NCPs) are employed in a variety of experiments as sources of
cold positronium (Ps) via positron to Ps conversion. Despite the widespread use of NCPs, no …