Abstract
AbstractThe coupling of the motion of two ion species in separate Penning traps via a common tank circuit is discussed. The enhancement of the coupling assisted by the tank circuit is demonstrated by an avoided crossing behavior measurement of the motional modes of two coupled ions. An intermittent laser cooling method for sympathetic cooling is proposed and a theoretical description is provided. The technique enables tuning of the coupling strength between two ion species in separate traps and thus allows for efficient sympathetic cooling of an arbitrary type of single ion for high‐precision Penning‐trap experiments.
Highlights
Tank-Circuit Assisted Coupling Method for Sympathetic Laser CoolingBingsheng Tu 1,∗,+ Felix Hahne 2,+ Ioanna Arapoglou 1 Alexander Egl 1 Fabian Heiße 1 Martin Hocker 1 Charlotte Konig 1 Jonathan Morgner 1 Tim Sailer 1 Andreas Weigel 1 Robert Wolf 1,# Sven Sturm 1Keywords: Penning trap, Ultra-cold ions, Sympathetic laser coolingWe discuss the coupling of the motion of two ion species in separate Penning traps via a common tank circuit
These experiments are dedicated to testing pillars of the Standard Model of Physics, such as quantum electrodynamics (QED) [12, 13, 14] and charge-parity-time (CPT) reversal symmetry [6, 15, 16], as well as to the determination of its parameters like the fine-structure constant α [12]
If in the future the corresponding transitions can be measured in the antimatter equivalent H −2 ion, the comparison yields a strong test of the CPT symmetry[2]
Summary
Bingsheng Tu 1,∗,+ Felix Hahne 2,+ Ioanna Arapoglou 1 Alexander Egl 1 Fabian Heiße 1 Martin Hocker 1 Charlotte Konig 1 Jonathan Morgner 1 Tim Sailer 1 Andreas Weigel 1 Robert Wolf 1,# Sven Sturm 1. We discuss the coupling of the motion of two ion species in separate Penning traps via a common tank circuit. The enhancement of the coupling assisted by the tank circuit is demonstrated by an avoided crossing behavior measurement of the motional modes of two coupled ions. We propose an intermittent laser cooling method for sympathetic cooling and provide a theoretical description. The technique enables tuning of the coupling strength between two ion species in separate traps and allows for efficient sympathetic cooling of an arbitrary type of single ion for high-precision Penning-trap experiments
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