Dynamical Casimir effect entangles artificial atoms
  We show that the physics underlying the dynamical Casimir effect may generate multipartite quantum correlations. To achieve it, we propose a circuit quantum electrodynamics (cQED) scenario involving superconducting quantum interference devices (SQUIDs), cavities, and superconducting qubits, also called artificial atoms. Our results predict the generation of highly entangled states for two and three superconducting qubits in different geometric configurations with realistic parameters. This proposal paves the way for a scalable method of multipartite entanglement generation in cavity networks through dynamical Casimir physics. 
S. Felicetti, M. Sanz, L. Lamata, G. Romero, G. Johansson, P. Delsing,   E. Solano
quant-ph cond-mat.mes-hall cond-mat.supr-con