Drosophila of phonon-mediated superconductivity: Full Eliashberg theory of the jellium model

2026/07/17 by Christophe Berthod, Louk Rademaker, Dirk van der Marel
#cond-mat.supr-con

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Abstract

We present a full numerical solution of the Migdal--Eliashberg equations for the jellium model of phonon-mediated superconductivity. We find very low critical temperatures below 1~K, in contrast to earlier claims that the jellium model for hydrogen solids might reach room-temperature superconductivity. Our results suggest that full momentum and frequency dependence of the gap function and normal self-energy should be taken into account for accurate T_c estimates.

Citations

• Calculation of the Superconducting State Parameters with Retarded Electron-Phonon Interaction

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