Sensitive magnetometry in challenging environments

KMC Fu, GZ Iwata, A Wickenbrock, D Budker - AVS Quantum Science, 2020 - pubs.aip.org
State-of-the-art magnetic field measurements performed in shielded environments under
carefully controlled conditions rarely reflect the realities of those applications envisioned in …

A 16-parts-per-trillion measurement of the antiproton-to-proton charge–mass ratio

MJ Borchert, JA Devlin, SR Erlewein, M Fleck… - Nature, 2022 - nature.com
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 …

Multi-ion frequency reference using dynamical decoupling

L Pelzer, K Dietze, VJ Martínez-Lahuerta, L Krinner… - Physical Review Letters, 2024 - APS
We present the experimental realization of a continuous dynamical decoupling scheme
which suppresses leading frequency shifts in a multi-ion frequency reference based on Ca+ …

Sympathetic cooling of a single individually-trapped proton in a cryogenic Penning trap

M Wiesinger - 2023 - archiv.ub.uni-heidelberg.de
A method to prepare arbitrary stored ions with low energy in the mK range would improve
many high-precision Penning trap experiments and is essential for high-precision …

BASE-STEP: A transportable antiproton reservoir for fundamental interaction studies

C Smorra, F Abbass, D Schweitzer… - Review of Scientific …, 2023 - pubs.aip.org
Currently, the world's only source of low-energy antiprotons is the AD/ELENA facility located
at CERN. To date, all precision measurements on single antiprotons have been conducted …

Challenging the Standard Model by high precision comparisons of the fundamental properties of antiprotons and protons

MJ Borchert - 2021 - repo.uni-hannover.de
This thesis describes high precision measurements on the fundamental properties of the
antiproton, namely the charge-to-mass ratio and the magnetic moment. This work is …

A 16 Parts per Trillion Comparison of the Antiproton-to-Proton q/m Ratios

MJ Borchert, JA Devlin, SE Erlewein, M Fleck… - arxiv preprint arxiv …, 2023 - arxiv.org
The Standard Model (SM) of particle physics is both incredibly successful and glaringly
incomplete. Among the questions left open is the striking imbalance of matter and antimatter …

Characterization and control of a cryogenic ion trap apparatus and laser systems for quantum computing

R Oswald - 2022 - research-collection.ethz.ch
Trapped ions are one of the leading approaches to build quantum computers. The required
building blocks have all been demonstrated with high fidelity, recently culminating in …

Implementation of a superconducting shimming and shielding system in the BASE experiment

S Erlewein - 2024 - pure.mpg.de
Zusammenfassung The BASE (Baryon Antibaryon Symmetry Experiment) experiment,
located at CERN's Antiproton decelerator, tests CPT-invariance by comparing the charge-to …

BASE—high-precision comparisons of the fundamental properties of protons and antiprotons

BM Latacz, BP Arndt, BB Bauer, JA Devlin… - The European Physical …, 2023 - Springer
The BASE collaboration at the antiproton decelerator/ELENA facility of CERN compares the
fundamental properties of protons and antiprotons with ultra-high precision. Using advanced …