Open AccessSpin-orbit dynamics in atomic krypton observed through decay of autoionising states
Author(s) -
Jack Wragg,
Gregory Armstrong,
Daniel D. A. Clarke,
C. P. Ballance,
A. C. Brown,
Hugo van der Hart
Publication year - 2020
Publication title -
journal of physics. conference series
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.21
H-Index - 85
eISSN - 1742-6596
pISSN - 1742-6588
DOI - 10.1088/1742-6596/1412/7/072018
Subject(s) - krypton , excited state , atomic physics , physics , spin (aerodynamics) , orbit (dynamics) , atom (system on chip) , xenon , computer science , engineering , thermodynamics , embedded system , aerospace engineering
Synopsis We study the spin-orbit interaction within excited states of krypton by extending R-Matrix with time-dependence theory to include spin-orbit effects. We study an attosecond pump-probe scheme where we produce an autoionising state with the probe pulse. We observe dynamics through the subsequent decay of the autoionising state, from which we find a time-dependent signal when spin-orbit interactions are included. We examine the effect of the relative polarisation of the pulses, enabling an interpretation of the dynamics in terms of the quantum number m ℓ of the core of the excited krypton atom.