Generation of hybrid entanglement of light

Jeong, Hyunseok, Zavatta, Alessandro, Kang, Minsu, Lee, Seung-Woo, Costanzo, Lucas S., Grandi, Samuele, Ralph, Timothy C. and Bellini, Marco (2014) Generation of hybrid entanglement of light. Nature Photonics, 8 7: 564-569. doi:10.1038/nphoton.2014.136

Author Jeong, Hyunseok
Zavatta, Alessandro
Kang, Minsu
Lee, Seung-Woo
Costanzo, Lucas S.
Grandi, Samuele
Ralph, Timothy C.
Bellini, Marco
Title Generation of hybrid entanglement of light
Journal name Nature Photonics   Check publisher's open access policy
ISSN 1749-4885
Publication date 2014-01-01
Year available 2014
Sub-type Article (original research)
DOI 10.1038/nphoton.2014.136
Open Access Status Not yet assessed
Volume 8
Issue 7
Start page 564
End page 569
Total pages 6
Place of publication London, United Kingdom
Publisher Nature Publishing Group
Language eng
Abstract Entanglement between quantum and classical objects is of special interest in the context of fundamental studies of quantum mechanics and potential applications for quantum information processing. In quantum optics, single photons are treated as light quanta while coherent states are considered the most classical of pure states. Recently, entanglement between a single photon and a coherent state in a free-travelling field was identified as a useful resource for optical quantum information processing. However, the extreme difficulty involved in generating such states was highlighted, as it requires clean cross-Kerr nonlinearities. Here, we devise and experimentally demonstrate a scheme to generate such hybrid entanglement by implementing a superposition of two distinct quantum operations. The generated states clearly show entanglement between the two different types of states. Our work opens the way to the generation of hybrid entanglement of greater size and the development of efficient quantum information processing using a new type of qubit.
Keyword Optics
Physics, Applied
Q-Index Code C1
Q-Index Status Confirmed Code
Institutional Status UQ
Additional Notes Published online 22 June 2014

Document type: Journal Article
Sub-type: Article (original research)
Collections: School of Mathematics and Physics
Official 2015 Collection
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Citation counts: TR Web of Science Citation Count  Cited 65 times in Thomson Reuters Web of Science Article | Citations
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