Bulletin of the American Physical Society
APS March Meeting 2023
Volume 68, Number 3
Las Vegas, Nevada (March 5-10)
Virtual (March 20-22); Time Zone: Pacific Time
Session G22: Superconductivity: Theory-II
11:30 AM–2:06 PM,
Tuesday, March 7, 2023
Room: Room 214
Sponsoring
Unit:
DCMP
Chair: Yuli Lyanda-Geller, Purdue University
Abstract: G22.00002 : Eliashberg theory in the uniform electron gas revisited*
11:42 AM–11:54 AM
Presenter:
Ryosuke Akashi
(National Institutes for Quantum Science and Technology)
Author:
Ryosuke Akashi
(National Institutes for Quantum Science and Technology)
In this presentation we review and explore the plasmonic effects that compete for Tc; plasmon-mediated pairing and plasmon self energy effects. The latter in realistic systems has not been investigated thoroughly because of computational cost required. We study the effects in the uniform electron gas (UEG) with a modeled electron-phonon interaction, whose properties should broadly apply to various conventional superconductors. We attempt to relate classic studies on UEG to the current studies on the effective Morel-Anderson pseudopotential, to build a basis for the first-principles and semiempirical Eliashberg calculations for conventional superconductors.
*This work has been supported by JSPS KAKENHI Grant No. 20K20895 from the Japan Society for the Promotion of Science (JSPS).
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