Scalable Dissipative Preparation of Many-Body Entanglement

TY - JOUR

T1 - Scalable Dissipative Preparation of Many-Body Entanglement

AU - Reiter, Florentin

AU - Sørensen, Anders Søndberg

AU - Reeb, David

PY - 2016/7/20

Y1 - 2016/7/20

N2 - 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.

AB - 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.

U2 - 10.1103/physrevlett.117.040501

DO - 10.1103/physrevlett.117.040501

M3 - Journal article

C2 - 27494463

SN - 0031-9007

VL - 117

JO - Physical Review Letters

JF - Physical Review Letters

M1 - 040501

ER -