RCI contribution of H

Open AnjaApp opened this issue 2 years ago • 1 comments

The RCI module adds QED corrections like the Breit-interaction and self energy. But it also has the option "Include contribution of H (Transverse)?" to which I wasn't able to find more information in the literature about Grasp*.

What does it mean? Is it connected to the photon transverse or something different? I would appreciate some related literature and/or formula if possible.

Thanks a lot, Anja

*(the referred to literature Advanced multiconfiguration methods for complex atoms: I. Energies and wave functions ; An Introduction to Relativistic Theory as Implemented in GRASP )

Feb 12 '23 16:02 AnjaApp

Dear Anja

The transverse photon interaction is discussed in I.P. Grant, Relativistic Quantum Theory of Atoms and Molecules, chapter 4.

See also https://iopscience.iop.org/article/10.1088/0022-3700/13/14/007/meta where it is referred to as the transverse electron-electron interaction.

Best wishes Per

From: AnjaApp @.> Sent: Sunday, February 12, 2023 5:02 PM To: compas/grasp @.> Cc: Subscribed @.***> Subject: [compas/grasp] RCI contribution of H (Issue #102)

What does it mean? Is it connected to the photon transverse or something different? I would appreciate some related literature and/or formula if possible.

Thanks a lot, Anja

*(the referred to literature Advanced multiconfiguration methods for complex atoms: I. Energies and wave functionshttps://iopscience.iop.org/article/10.1088/0953-4075/49/18/182004/pdf ; An Introduction to Relativistic Theory as Implemented in GRASPhttps://www.mdpi.com/2218-2004/11/1/7 )

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Feb 13 '23 07:02 tspejo