Can first-principles Eliashberg theory predict hydride T_c within ten percent? · revision history

Revision 2

Accepted · core change · record

Changes against revision 1:

Title · changed
Revision 1: Can first-principles Eliashberg theory predict hydride $T_{c}$ within ten percent
Revision 2: Can first-principles Eliashberg theory predict hydride $T_{c}$ within ten percent?
Plain
Hydride superconductivity is thought to come from lattice vibrations, which theory can compute, but light hydrogen atoms vibrate strongly and quantum mechanically, which complicates predictions.
Precise · changed · core
Revision 1: Determine whether Migdal-Eliashberg theory with first-principles electron-phonon coupling, including quantum anharmonic lattice dynamics and zero-point motion and with mu* computed or fixed in advance, predicts $T_{c}$ of compressed hydrides (H3S, LaH10, CaH6, YH6) within 10 percent and their isotope coefficients. An answer is a blind prediction later confirmed or refuted by experiment.
Revision 2: Determine whether Migdal-Eliashberg theory with first-principles electron-phonon coupling, including quantum anharmonic lattice dynamics and zero-point motion and with $\mu*$ computed or fixed in advance, predicts $T_{c}$ of compressed hydrides ($\mathrm{H_3S}$, $\mathrm{LaH_{10}}$, $\mathrm{CaH_6}$, $\mathrm{YH_6}$) within 10 percent and their isotope coefficients. An answer is a blind prediction later confirmed or refuted by experiment.
Settled by
Published blind predictions of $T_c$ and isotope coefficient for a new hydride, followed by measurement.
Kind
well-posed
Answer type
yes-no
References
(empty)
Literature status
partially-resolved
Status note · changed
Revision 1: Calculations reproduce $T_{c}$ of H3S and LaH10 approximately, but results depend on $\mu*$ and on the treatment of anharmonicity.
Revision 2: Calculations reproduce $T_{c}$ of $\mathrm{H_3S}$ and $\mathrm{LaH_{10}}$ approximately, but results depend on $\mu*$ and on the treatment of anharmonicity.
Posed since
(empty)

Decisions