Experimental access to higher-order Zeeman effects by precision spectroscopy of highly charged ions in a Penning trap

Abstract

We present an experimental concept and setup for laser-microwave double-resonance spectroscopy of highly charged ions in a Penning trap. Such spectroscopy allows a highly precise measurement of the Zeeman splittings of fine-and hyperfine-structure levels due the magnetic field of the trap. We have performed detailed calculations of the Zeeman effect in the framework of quantum electrodynamics of bound states as present in such highly charged ions. We find that apart from the linear Zeeman effect, second-and third-order Zeeman effects also contribute to the splittings on a level of 10 −4 and 10 −8 , respectively, and hence are accessible to a determination within the achievable spectroscopic resolution of the ARTEMIS experiment currently in preparation.PACS numbers: 32.60.+i, 42.62.Fi, 78.70.Gq, 37.10.Ty (2) J and g (3) J

Эффект отдачи ядра для g-фактора легких бороподобных ионов-=SUP=-*-=/SUP=-

“…Эксперимент ARTEMIS, осуществляемый в настоящее время в Институте физики тяжелых ионов (GSI) в Дармштадте [19], нацелен на * Совещание по прецизионной атомно-молекулярной спектроско-пии, 13-14 ноября 2017 г., ПИЯФ НИЦ " Курчатовский институт", Гатчина, Россия.…”

Theory of Bound-Electron g Factor in Highly Charged Ions

“…The influence of the higher-order Zeeman effects on the fine-structure levels in boronlike argon was studied in Refs. 72,74 . The related experiments are currently under preparation at GSI (Darmstadt).…”

“…The laser-microwave double-resonance technique [69][70][71][72][73] allows precise measurements of the Zeeman splittings of fine-and hyperfine-structure levels in a Penning trap. This, apart from the linear Zeeman effect, provides an access to the second-and third-order Zeeman effect with highly charged ions.…”

Half-open Penning trap with efficient light collection for precision laser spectroscopy of highly charged ions

“…With these ions, laser-microwave double resonance spectroscopy will be performed as described in detail in [22,24]. This is also an excellent test case for further studies with heavier ions of higher charge states as available from the HITRAP [30,31] facility in its present configuration and future configurations in the framework of the FLAIR project.…”

“…The experiment featuring this trap (ARTEMIS) aims at high precision measurements of electronic and nuclear magnetic moments by laser-microwave double-resonance spectroscopy [22] of confined highly-charged ions. A scientific motivation and further details have been given in [22,23,24,25].…”