Back-action driven, robust, steady-state long-distance entanglement
Felix Motzoi, Eli Halperin, Xiaoting Wang, K. Birgitta Whaley, S. G. Schirmer · arXiv (Cornell University) · 2015
We present a scheme for generating robust steady-state entanglement between qubits that do not interact and do not exchange information, using Markovian reservoir engineering. Several realizations including natural or artificial atoms coupled to a single cavity or to separate cavities with a uni- or bidirectional decay channel between them are considered. The scheme requires no dynamic control, measurements or feedback, and is optimized to be robust with regard to arbitrarily large cavity and fiber losses, thereby opening a route to stabilization of truly long-range entanglement between distant qubits. The protocol is also robust with regard to uncertainty in the system parameters and atomic decoherence and requires no knowledge of the initial state of the system.