[HTML][HTML] Observation of the effect of gravity on the motion of antimatter

EK Anderson, CJ Baker, W Bertsche, NM Bhatt… - Nature, 2023 - nature.com
Einstein's general theory of relativity from 1915 1 remains the most successful description of
gravitation. From the 1919 solar eclipse 2 to the observation of gravitational waves 3, the …

[HTML][HTML] Antiprotonic bound systems

M Doser - Progress in Particle and Nuclear Physics, 2022 - Elsevier
A wide range of exotic bound systems incorporating antiprotons (atoms, atomic ions,
molecules or molecular ions) can be formed, in many cases simply by replacing at least one …

Fundamental physics and other applications using nonneutral plasma

G Maero, ED Hunter, DJ Murtagh… - Advances in Physics …, 2024 - Taylor & Francis
During the last fifty years, nonneutral plasma physics has developed into a definite subfield
of basic research, whose main focus has been on the collective properties of systems …

Many-Body Theory Calculations of Positron Scattering and Annihilation in , , and

CM Rawlins, J Hofierka, B Cunningham… - Physical Review Letters, 2023 - APS
The recently developed ab initio many-body theory of positron molecule binding [J. Hofierka,
Many-body theory of positron binding to polyatomic molecules, Nature (London) 606, 688 …

3D sympathetic cooling and detection of levitated nanoparticles

DS Bykov, L Dania, F Goschin, TE Northup - Optica, 2023 - opg.optica.org
Cooling the center-of-mass motion of levitated nanoparticles provides a route to quantum
experiments at mesoscopic scales. Here we demonstrate three-dimensional sympathetic …

Many-body theory calculations of positron scattering and annihilation in noble-gas atoms via the solution of Bethe–Salpeter equations using the Gaussian-basis code …

J Hofierka, CM Rawlins, B Cunningham… - Frontiers in …, 2023 - frontiersin.org
Scattering phase shifts and annihilation rates for low-energy positrons interacting with noble
gas atoms are calculated ab initio using many-body theory implemented in the Gaussian …

Sympathetic cooling schemes for separately trapped ions coupled via image currents

C Will, M Bohman, T Driscoll, M Wiesinger… - New Journal of …, 2022 - iopscience.iop.org
Cooling of particles to mK-temperatures is essential for a variety of experiments with trapped
charged particles. However, many species of interest lack suitable electronic transitions for …

Optical stimulated-Raman sideband spectroscopy of a single ion in a Penning trap

JM Cornejo, J Brombacher, JA Coenders… - Physical Review …, 2023 - APS
We demonstrate optical sideband spectroscopy of a single Be+ 9 ion in a cryogenic 5 tesla
Penning trap using two-photon stimulated-Raman transitions between the two Zeeman …

Formation of two-ion crystals by injection from a Paul-trap source into a high-magnetic-field Penning trap

J Berrocal, E Altozano, F Domínguez, MJ Gutiérrez… - Physical Review A, 2022 - APS
Two-ion crystals constitute a platform for investigations of quantum nature that can be
extended to any ion species or charged particle provided one of the ions in the crystal can …

Diocotron modes in pure electron plasmas in the APEX levitating dipole trap

A Deller, VC Bayer, P Steinbrunner… - Plasma Physics and …, 2024 - iopscience.iop.org
Observations of persistent toroidal modes in dipole-trapped pure electron plasmas are
presented. Non-neutral electron plasmas were confined by the poloidal magnetic field of the …