Walker, Thomas, Miyanishi, Koichiro, Ikuta, Rikizo, Takahashi, Hiroki, Vartabi Kashanian, Samir, Tsujimoto, Yoshiaki, Hayasaka, Kazuhiro, Yamamoto, Takashi, Imoto, Nobuyuki and Keller, Matthias (2018) Long-distance single photon transmission from a trapped ion via quantum frequency conversion. Physical Review Letters, 120 (20). ISSN 0031-9007
![]() |
PDF
- Published Version
Available under License All Rights Reserved. Download (853kB) |
![]() |
Archive (ZIP) (Ion QFC Data)
- Supplemental Material
Download (37kB) |
Abstract
Trapped atomic ions are ideal single photon emitters with long-lived internal states which can be entangled with emitted photons. Coupling the ion to an optical cavity enables the efficient emission of single photons into a single spatial mode and grants control over their temporal shape. These features are key for quantum information processing and quantum communication. However, the photons emitted by these systems are unsuitable for long-distance transmission due to their wavelengths. Here we report the transmission of single photons from a single 40Ca+ ion coupled to an optical cavity over a 10 km optical fiber via frequency conversion from 866 nm to the telecom C band at 1530 nm. We observe nonclassical photon statistics of the direct cavity emission, the converted photons, and the 10kmtransmitted photons, as well as the preservation of the photons’ temporal shape throughout. This telecommunication-ready system can be a key component for long-distance quantum communication as well as future cloud quantum computation.
Item Type: | Article |
---|---|
Schools and Departments: | School of Mathematical and Physical Sciences > Physics and Astronomy |
Research Centres and Groups: | Atomic, Molecular and Optical Physics Research Group |
Subjects: | Q Science > QC Physics |
Depositing User: | Billy Wichaidit |
Date Deposited: | 24 May 2018 08:11 |
Last Modified: | 24 May 2018 08:11 |
URI: | http://srodev.sussex.ac.uk/id/eprint/76077 |
View download statistics for this item
📧 Request an updateProject Name | Sussex Project Number | Funder | Funder Ref |
---|---|---|---|
UK Quantum Technology Hub: NQIT-Networked Quantum Information Technologies | G1503 | EPSRC-ENGINEERING & PHYSICAL SCIENCES RESEARCH COUNCIL | EP/M013243/1 |
Quantum Networking with Fibre-Coupled Ions | G0755 | EPSRC-ENGINEERING & PHYSICAL SCIENCES RESEARCH COUNCIL | EP/J003670/1 |