Quantum Electrodynamics in Strong Electromagnetic Fields: Substate Resolved Kα Transition Energies in Heliumlike Uranium

IF 9 1区物理与天体物理 Q1 PHYSICS, MULTIDISCIPLINARY Physical review letters Pub Date : 2025-04-14 DOI:10.1103/physrevlett.134.153001

Ph. Pfäfflein, G. Weber, S. Allgeier, Z. Andelkovic, S. Bernitt, A. I. Bondarev, A. Borovik, L. Duval, A. Fleischmann, O. Forstner, M. Friedrich, J. Glorius, A. Gumberidze, Ch. Hahn, F. Herfurth, D. Hengstler, M. O. Herdrich, P.-M. Hillenbrand, A. Kalinin, M. Kiffer, F. M. Kröger, M. Kubullek, P. Kuntz, M. Lestinsky, Yu. A. Litvinov, B. Löher, E. B. Menz, T. Over, N. Petridis, S. Ringleb, R. S. Sidhu, U. Spillmann, S. Trotsenko, A. Warczak, B. Zhu, Ch. Enss, Th. Stöhlker

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Abstract

Using novel metallic magnetic calorimeter detectors at the CRYRING@ESR, we recorded x-ray spectra of stored and electron cooled heliumlike uranium (U90+) with an unmatched spectral resolution of close to 90 eV. This allowed for an accurate determination of the energies of all four components of the Kα transitions in U90+. We find good agreement with state-of-the-art bound-state QED calculations for the strong-field regime. Our results do not support any systematic deviation between experiment and theory in heliumlike systems, the presence of which was subject of intense debates in recent years.

Published by the American Physical Society

2025

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强电磁场中的量子电动力学：类氦铀的亚态分解Kα跃迁能

利用CRYRING@ESR的新型金属磁量热计探测器，我们以接近90 eV的无与伦比的光谱分辨率记录了储存和电子冷却的类氦铀（U90+）的x射线光谱。这使得精确地测定了U90+中Kα跃迁的所有四个组分的能量。我们发现与最先进的束缚态QED计算在强场状态下有很好的一致性。我们的结果不支持在类氦系统中实验和理论之间的任何系统偏差，这种偏差的存在是近年来激烈辩论的主题。2025年由美国物理学会出版

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来源期刊

Physical review letters 物理-物理：综合

CiteScore

16.50

自引率

7.00%

发文量

2673

审稿时长

2.2 months

期刊介绍： Physical review letters(PRL)covers the full range of applied, fundamental, and interdisciplinary physics research topics: General physics, including statistical and quantum mechanics and quantum information Gravitation, astrophysics, and cosmology Elementary particles and fields Nuclear physics Atomic, molecular, and optical physics Nonlinear dynamics, fluid dynamics, and classical optics Plasma and beam physics Condensed matter and materials physics Polymers, soft matter, biological, climate and interdisciplinary physics, including networks