Quantum correlations in the steady state of light-emitter ensembles from perturbation theory
Dolf Huybrechts and Tommaso Roscilde
Quantum 10, 2085 (2026). https://doi.org/10.22331/q-2026-04-28-2085 The coupling of a quantum system to an environment leads generally to decoherence, and it is detrimental to quantum correlations within the system itself. Yet some forms of quantum correlations can be robust to the presence of an environment – or may even be stabilized by it. Predicting (let alone understanding) them remains arduous, given that the steady state of an open quantum system can be very different from an equilibrium