A paper posted to arXiv last month claims to have achieved superconductivity at room temperature, but other physicists say the data may be incorrect.

When it comes to applied quantum mechanics, there are two “holy grails” in the field.

One is building a large scale quantum computer and the other is achieving superconductivity above the freezing point of water, colloquially known as room temperature superconductivity. Superconductors are materials that have no electrical resistance—meaning that electrons can flow through the object unimpeded—but so far physicists have only been able to achieve superconductivity by bringing the materials to incredibly cold temperatures. If superconductivity could be harnessed at room temperature, it would allow for the free transport of energy, wildly faster computers, and incredibly precise sensors. Indeed, it would fundamentally change the world.

https://arxiv.org/abs/1807.08572

https://resonance.is/either-this-data-is-incorrect-or-these-physicists-just-changed-the-world/