- Accepted Paper
Theory of a strange metal in a quantum superconductor to metal transition
Phys. Rev. B - Accepted 3 September, 2026
DOI: https://doi.org/10.1103/wpmm-x5h5
Phys. Rev. B - Accepted 3 September, 2026
DOI: https://doi.org/10.1103/wpmm-x5h5
Recent experiments with nanopatterned thin films revealed an unusual quantum superconductor to metal phase transition (QSMT) with a linear in temperature resistivity. In contrast, most known examples of such transitions and standard theoretical considerations predict a temperature-independent sheet resistance of order . We propose an effective theory of a disordered superconductor which features a QSMT with robust linear resistivity at the critical point. The crucial ingredient in our model is spatial disorder in the pairing interaction. Such random pairing mirrors the emergent phase disorder seen in a recent mean field study of a microscopic d-wave superconductor subject to potential disorder. We also make the prediction that in such systems the diamagnetic susceptibility diverges as , which starkly differs from the power law divergence in standard XY transitions.
If the author has provided any supplemental materials with this article they will be available upon publication of the version of record.