Jens Paaske

From Effective Temperature to Non-Boltzmann State Selection in Driven-Dissipative Quantum Criticality

Whether a nonequilibrium quantum-critical steady state can be described by an effective temperature remains an open question. We address it in a voltage-biased electronic Lipkin--Meshkov--Glick model, a minimal driven-dissipative model of a collective spin coupled to metallic leads. A controlled large-$N$ treatment rev...