Distillation of photon entanglement using a plasmonic metamaterial

Motoki Asano, Muriel Bechu, Mark Tame, Sahin Kaya Özdemir, Rikizo Ikuta, Durdu Güney, Takashi Yamamoto, Lan Yang, Martin Wegener, Nobuyuki Imoto

Research output: Contribution to journalArticlepeer-review

34 Scopus citations


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.

Original languageEnglish (US)
Article number18313
JournalScientific reports
StatePublished - Dec 16 2015

All Science Journal Classification (ASJC) codes

  • General


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