2 papers
cond-mat.str-el2026
Multi-Criticality and RG Topology in the Charge-Kondo-Breakdown Scenario in the Cuprates
Stefan Kirchner, Petr Jizba
In this paper, we examine the dynamical charge-Kondo-breakdown scenario proposed for cuprate superconductors within the perspective of renormalization group (RG) topology. By analy…
cond-mat.str-el2026
Critical Charge and Current Fluctuations across a Voltage-Driven Phase Transition
José F. B. Afonso, Stefan Kirchner, Pedro Ribeiro
We investigate bias-driven non-equilibrium quantum phase transitions in a paradigmatic quantum-transport setup: an interacting quantum dot coupled to non-interacting metallic leads…