Researchers have uncovered a hidden magnetic order in the pseudogap phase of a quantum material, a long-standing mystery in superconductivity research. Using an ultracold-atom simulator based on the Fermi-Hubbard model, the team detected antiferromagnetic correlations emerging above the superconducting transition. The discovery provides fresh insight into how supercon…​Researchers have uncovered a hidden magnetic order in the pseudogap phase of a quantum material, a long-standing mystery in superconductivity research. Using an ultracold-atom simulator based on the Fermi-Hubbard model, the team detected antiferromagnetic correlations emerging above the superconducting transition. The discovery provides fresh insight into how supercon…