Revision 1

Superseded · first revision · record

Title: 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: 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.
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: Calculations reproduce $T_{c}$ of H3S and LaH10 approximately, but results depend on $\mu*$ and on the treatment of anharmonicity.
Posed since: (empty)