Advances in quantum technologies are giving rise to a revolution in the way fundamental
physics questions are explored at the empirical level. At the same time, they are the seeds …

Precise comparisons of the fundamental properties of matter–antimatter conjugates provide
sensitive tests of charge–parity–time (CPT) invariance, which is an important symmetry that …

Atomic mass measurements are essential for obtaining several of the fundamental
constants. The most precise atomic mass measurements, at the 10− 10 level of precision or …

Helium-3 has nowadays become one of the most important candidates for studies in
fundamental physics,–, nuclear and atomic structure,, magnetometry and metrology, as well …

The experimental observation of a clear quantum signature of gravity is believed to be out of
the grasp of current technology. However, several recent promising proposals to test the …

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 …

The standard model of particle physics is both incredibly successful and glaringly
incomplete. Among the questions left open is the striking imbalance of matter and antimatter …

Given a unitary evolution U on a multipartite quantum system and an ensemble of initial
states, how well can U be simulated by local operations and classical communication …

We describe the design, commissioning, and operation of an ultra-low-vibration closed-cycle
cryogenic ion trap apparatus. One hundred lines for low-frequency signals and eight …

A cryogenic radio-frequency ion trap system designed for quantum logic spectroscopy of
highly charged ions (HCI) is presented. It includes a segmented linear Paul trap, an in …