4.7 Article

Inverse-designed dielectric cloaks for entanglement generation

期刊

NANOPHOTONICS
卷 11, 期 19, 页码 4387-4395

出版社

WALTER DE GRUYTER GMBH
DOI: 10.1515/nanoph-2022-0231

关键词

dielectric cloak; entanglement; inverse design; quantum emitter; topology optimization

资金

  1. Spanish MCIN/AEI
  2. ERDF A way of making Europe (Maria de Maeztu program for Units of Excellence in RD) [RTI2018-099737-B-I00, CEX2018-000805-M]
  3. 2020 CAM Synergy Project [Y2020/TCS-6545]

向作者/读者索取更多资源

In this study, we investigate the generation of entanglement between two quantum emitters by inverse-design engineering of their photonic environment. We use a topology-optimization approach to create dielectric cloaks at different inter-emitter distances and incoherent pumping strengths. The structures obtained maximize the dissipative coupling between the emitters and yield steady-state concurrence values that are significantly higher than those achievable in free space. We demonstrate that the entanglement enabled by our devices approaches the limit of maximum-entangled-mixed-states.
We investigate the generation of entanglement between two quantum emitters through the inverse-design engineering of their photonic environment. By means of a topology-optimization approach acting at the level of the electromagnetic Dyadic Green's function, we generate dielectric cloaks operating at different inter-emitter distances and incoherent pumping strengths. We show that the structures obtained maximize the dissipative coupling between the emitters under extremely different Purcell factor conditions, and yield steady-state concurrence values much larger than those attainable in free space. Finally, we benchmark our design strategy by proving that the entanglement enabled by our devices approaches the limit of maximum-entangled-mixed-states.

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