Hopefully, this will help to bring us closer to room temperature superconductivity! Unfortunately, the popular science article below from Physics World has a hard time to explain the progress. I assume the progress is perhaps too small to be of significant value at this time.
"... What is more, the superconducting transition temperature of the doped cuprates far exceeded those of previously-recognized metallic superconductors – meaning that the established Bardeen–Cooper–Schrieffer (BCS) theory of low-temperature superconductors must be incomplete. ..."
"... We consider the Hatsugai–Kohmoto model1,2, an exactly solvable system that is a prototypical Mott insulator. Upon either doping or reducing the interaction strength, our exact calculations show that the system becomes a non-Fermi liquid metal with a superconducting instability. In the presence of a weak pairing interaction, the instability produces a thermal transition to a superconducting phase, which is distinct from the traditional state described by Bardeen–Cooper–Schrieffer (BCS) theory, as evidenced by a gap-to-transition temperature ratio exceeding the universal BCS limit. The elementary excitations of this superconductor are not Bogoliubov quasiparticles but rather superpositions of doublons and holons, composite excitations that show that the superconducting ground state of the doped Mott insulator inherits the non-Fermi liquid character of the normal state. ..."
Definitely not easy to understand this stuff!
Superconductivity theory comes a step closer – Physics World
Here is the link to the underlying research paper: Exact theory for superconductivity in a doped Mott insulator
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