Multiparticle entanglement is of great significance for quantum metrology and quantum information processing. We here present an efficient scheme to generate stable multiparticle entanglement in a solid state setup, where an array of silicon-vacancy centers are embedded in a quasi-one-dimensional acoustic diamond waveguide. In this scheme, the continuum of phonon modes induces a controllable dissipative coupling among the SiV centers. We show that, by an appropriate choice of the distance between the SiV centers, the dipole-dipole interactions can be switched off due to destructive interferences, thus realizing a Dicke superradiance model. This gives rise to an entangled steady state of SiV centers with high fidelities. The protocol provides a feasible setup for the generation of multiparticle entanglement in a solid state system.
@article{arxiv.2002.10760,
title = {Phononic waveguide assisted steady state entanglement of SiV centers},
author = {Yi-Fan Qiao and Hong-Zhen Li and Xing-Liang Dong and Jia-Qiang Chen and Yuan Zhou and Peng-Bo Li},
journal= {arXiv preprint arXiv:2002.10760},
year = {2020}
}