Strong vertex corrections from weak disorder in 2D d-wave superconductors

Debmalya Chakraborty, Rajdeep Sensarma, Amit Ghosal

M. Crişan, I. Ţifrea

Jian Colin Sun, Long He, Yangyang Zhao +1 more

Luca Dell’Anna

Carlo A. Trugenberger

We show that 2D gapped many-body quantum states are constrained by an infinite-dimensional symmetry which renders them transparent to weak disorder. This prevents disorder-induced localization when interactions are strong enough to open a gap. Using purely algebraic methods we derive all possible quantum states near the superconductor-to-insulator (SIT) transition and we compute the meson spectrum of superinsulators.

R. R. Ramazashvili