Generation of a frequency-degenerate four-photon entangled state using a silicon nanowire

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dc.contributor.authorFeng, Lan-Tianen_ZA
dc.contributor.authorZhang, Mingen_ZA
dc.contributor.authorZhou, Zhi-Yuanen_ZA
dc.contributor.authorChen, Yangen_ZA
dc.contributor.authorLi, Mingen_ZA
dc.contributor.authorDai, Dao-Xinen_ZA
dc.contributor.authorRen, Hong-Liangen_ZA
dc.contributor.authorGuo, Guo-Pingen_ZA
dc.contributor.authorGuo, Guang-Canen_ZA
dc.contributor.authorTame, Marken_ZA
dc.contributor.authorRen, Xi-Fengen_ZA
dc.date.accessioned2021-10-05T13:33:55Z
dc.date.available2021-10-05T13:33:55Z
dc.date.issued2019
dc.descriptionCITATION: Feng, L. T., et al. 2019. Generation of a frequency-degenerate four-photon entangled state using a silicon nanowire. npj Quantum Information, 5:90, doi:10.1038/s41534-019-0205-4.
dc.descriptionThe original publication is available at https://www.nature.com
dc.description.abstractIntegrated photonics is becoming an ideal platform for generating two-photon entangled states with high brightness, high stability, and scalability. This high brightness and high quality of photon pair sources encourages researchers further to study and manipulate multiphoton entangled states. Here, we experimentally demonstrate frequency-degenerate four-photon entangled state generation based on a single silicon nanowire 1 cm in length. The polarization encoded entangled states are generated with the help of a Sagnac loop using additional optical elements. The states are analyzed using quantum interference and state tomography techniques. As an example, we show that the generated quantum states can be used to achieve phase super-resolution. Our work provides a method for preparing indistinguishable multi-photon entangled states and realizing quantum algorithms in a compact on-chip setting.en_ZA
dc.description.urihttps://www.nature.com/articles/s41534-019-0205-4
dc.description.versionPublisher's version
dc.format.extent7 pages
dc.identifier.citationFeng, L. T., et al. 2019. Generation of a frequency-degenerate four-photon entangled state using a silicon nanowire. npj Quantum Information, 5:90, doi:10.1038/s41534-019-0205-4
dc.identifier.issn2056-6387 (online)
dc.identifier.otherdoi:10.1038/s41534-019-0205-4
dc.identifier.urihttp://hdl.handle.net/10019.1/123133
dc.language.isoen_ZAen_ZA
dc.publisherNature Research
dc.rights.holderAuthors retain copyright
dc.subjectTwo-photon absorbing materialsen_ZA
dc.subjectPhotonicsen_ZA
dc.subjectQuantum entanglementen_ZA
dc.subjectMultiphoton processesen_ZA
dc.titleGeneration of a frequency-degenerate four-photon entangled state using a silicon nanowireen_ZA
dc.typeArticleen_ZA
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