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Distillation of photon entanglement using a plasmonic metamaterial

Plasmonics is a rapidly emerging platform for quantum state engineering with the potential for building ultra-compact and hybrid optoelectronic devices. Recent experiments have shown that despite the presence of decoherence and loss, photon statistics and entanglement can be preserved in single plas...

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Detalles Bibliográficos
Autores principales: Asano, Motoki, Bechu, Muriel, Tame, Mark, Kaya Özdemir, Şahin, Ikuta, Rikizo, Güney, Durdu Ö., Yamamoto, Takashi, Yang, Lan, Wegener, Martin, Imoto, Nobuyuki
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Nature Publishing Group 2015
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4680945/
https://www.ncbi.nlm.nih.gov/pubmed/26670790
http://dx.doi.org/10.1038/srep18313
Descripción
Sumario:Plasmonics is a rapidly emerging platform for quantum state engineering with the potential for building ultra-compact and hybrid optoelectronic devices. Recent experiments have shown that despite the presence of decoherence and loss, photon statistics and entanglement can be preserved in single plasmonic systems. This preserving ability should carry over to plasmonic metamaterials, whose properties are the result of many individual plasmonic systems acting collectively, and can be used to engineer optical states of light. Here, we report an experimental demonstration of quantum state filtering, also known as entanglement distillation, using a metamaterial. We show that the metamaterial can be used to distill highly entangled states from less entangled states. As the metamaterial can be integrated with other optical components this work opens up the intriguing possibility of incorporating plasmonic metamaterials in on-chip quantum state engineering tasks.