Towards Sympathetic Cooling of Single (Anti-)Protons

Abstract

We present methods to manipulate and detect the motional state and the spin state of a single antiproton or proton which are currently under development within the BASE (Baryon Antibaryon Symmetry Experiment) collaboration. These methods include sympathetic laser cooling of a single (anti-)proton using a co-trapped atomic ion as well as quantum logic spectroscopy with the two particles and could be implemented within the collaboration for state preparation and state readout in the antiproton $g$-factor measurement experiment at CERN. In our project, these techniques shall be applied using a single ${}^9{\text{Be}}^{+}$ ion as the atomic ion in a Penning trap system at a magnetic field of 5 T. As an intermediate step, a controlled interaction of two beryllium ions in a double-well potential as well as sympathetic cooling of one ion by the other shall be demonstrated.

arXiv commentProceedings of the 13th International Conference on Low Energy Antiproton Physics (LEAP 2018) Paris, France, 12-16 March 2018

References in corpus (8)

• Coupled quantized mechanical oscillators
• Lorentz-violating spinor electrodynamics and Penning traps
• BASE - The Baryon Antibaryon Symmetry Experiment
• A highly stable monolithic enhancement cavity for SHG generation in the UV
• Cooling antihydrogen ions for the free-fall experiment GBAR
• CPT test with (anti-)proton magnetic moments based on quantum logic cooling and readout
• Towards Quantum Logic Inspired Cooling and Detection for Single (Anti-)Protons
• Towards Sympathetic Laser Cooling and Detection of Single (Anti-)Proton

Cited by in corpus (5)

• Quantum logic inspired techniques for spacetime-symmetry tests with (anti-)protons
• 139 GHz UV phase-locked Raman laser system for thermometry and sideband cooling of ${}^9$Be${}^{+}$ ions in a Penning trap
• Precision measurements of the fundamental properties of the proton and antiproton
• Robust dynamical exchange cooling with trapped ions
• Deterministic preparation of a dual-species two-ion crystal