Our research plans focus on a single electron in a Penning trap, a system known as a geonium atom,
as coined by its inventor the 1989 Nobel Prize winner Hans Dehmelt. The role of the nucleus is played by the adjustable external trapping fields: the electron is bound to an apparatus anchored to the earth (therefore the name geonium). The properties of the geonium atom can be calculated with extremely high precision and it is an outstanding system for testing the laws of physics with very high accuracy.
They are essential for some tests of the unitarity of the Cabibbo-Kobayashi-Maskawa quark mixing matrix, for obtaining an upper experimental bound to the neutrino mass and also for the production of neutral antihydrogen. Summarizing, Penning traps provide the means for performing very precise tests of nuclear models, the weak interaction, QED and the Standard Model.