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arXiv · 1501.06611

Scalable Dissipative Preparation of Many-Body Entanglement

Florentin Reiter·David Reeb·Anders S. Sørensen
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Abstract

We present a technique for the dissipative preparation of highly entangled multiparticle states of atoms coupled to common oscillator modes. By combining local spontaneous emission with coherent couplings we engineer many-body dissipation that drives the system from an arbitrary initial state into a Greenberger-Horne-Zeilinger state. We demonstrate that using our technique, highly entangled steady states can be prepared efficiently in a time that scales polynomially with the system size. Our protocol assumes generic couplings and will thus enable the dissipative production of multiparticle entanglement in a wide range of physical systems. As an example, we demonstrate the feasibility of our scheme in state-of-the-art trapped-ion systems.

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Florentin Reiter, David Reeb, Anders S. Sørensen. 2016-09-09. Scalable Dissipative Preparation of Many-Body Entanglement. https://doi.org/10.1103/physrevlett.117.040501

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