Scalable Dissipative Preparation of Many-Body Entanglement
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...
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| Published in | Physical review letters Vol. 117; no. 4; p. 040501 |
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| Main Authors | , , |
| Format | Journal Article |
| Language | English |
| Published |
United States
22.07.2016
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| Online Access | Get more information |
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| Summary: | 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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| ISSN: | 1079-7114 |
| DOI: | 10.1103/physrevlett.117.040501 |