Frequency downconversion for a quantum network

Research output: Journal Publications and ReviewsRGC 21 - Publication in refereed journalpeer-review

28 Scopus Citations
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Detail(s)

Original languageEnglish
Pages (from-to)2591-2593
Journal / PublicationOptics Letters
Volume35
Issue number15
Publication statusPublished - 1 Aug 2010
Externally publishedYes

Abstract

By using a parametric downconversion process with a strong signal field injection, we demonstrate coherent frequency downconversion from a pump photon to an idler photon. Contrary to a common misunderstanding, we show that the process can be free of quantum noise. With an interference experiment, we demonstrate that the coherence is preserved in the conversion process. This may lead to a high-fidelity quantum state transfer from a high-frequency photon to a low-frequency photon and connects a missing link in a quantum network. With this scheme of coherent frequency downconversion of photons, we propose a method of single-photon WDM. © 2010 Optical Society of America.

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Publication details (e.g. title, author(s), publication statuses and dates) are captured on an “AS IS” and “AS AVAILABLE” basis at the time of record harvesting from the data source. Suggestions for further amendments or supplementary information can be sent to lbscholars@cityu.edu.hk.

Citation Format(s)

Frequency downconversion for a quantum network. / Ding, Yu; Ou, Z. Y.
In: Optics Letters, Vol. 35, No. 15, 01.08.2010, p. 2591-2593.

Research output: Journal Publications and ReviewsRGC 21 - Publication in refereed journalpeer-review