Integrated multi-wavelength control of an ion qubit

R. J. Niffenegger (), J. Stuart, C. Sorace-Agaskar, D. Kharas, S. Bramhavar, C. D. Bruzewicz, W. Loh, R. T. Maxson, R. McConnell, D. Reens, G. N. West, J. M. Sage () and J. Chiaverini ()
Additional contact information
R. J. Niffenegger: Lincoln Laboratory, Massachusetts Institute of Technology
J. Stuart: Lincoln Laboratory, Massachusetts Institute of Technology
C. Sorace-Agaskar: Lincoln Laboratory, Massachusetts Institute of Technology
D. Kharas: Lincoln Laboratory, Massachusetts Institute of Technology
S. Bramhavar: Lincoln Laboratory, Massachusetts Institute of Technology
C. D. Bruzewicz: Lincoln Laboratory, Massachusetts Institute of Technology
W. Loh: Lincoln Laboratory, Massachusetts Institute of Technology
R. T. Maxson: Lincoln Laboratory, Massachusetts Institute of Technology
R. McConnell: Lincoln Laboratory, Massachusetts Institute of Technology
D. Reens: Lincoln Laboratory, Massachusetts Institute of Technology
G. N. West: Massachusetts Institute of Technology
J. M. Sage: Lincoln Laboratory, Massachusetts Institute of Technology
J. Chiaverini: Lincoln Laboratory, Massachusetts Institute of Technology

Nature, 2020, vol. 586, issue 7830, 538-542

Abstract: Abstract Monolithic integration of control technologies for atomic systems is a promising route to the development of quantum computers and portable quantum sensors1–4. Trapped atomic ions form the basis of high-fidelity quantum information processors5,6 and high-accuracy optical clocks7. However, current implementations rely on free-space optics for ion control, which limits their portability and scalability. Here we demonstrate a surface-electrode ion-trap chip8,9 using integrated waveguides and grating couplers, which delivers all the wavelengths of light required for ionization, cooling, coherent operations and quantum state preparation and detection of Sr+ qubits. Laser light from violet to infrared is coupled onto the chip via an optical-fibre array, creating an inherently stable optical path, which we use to demonstrate qubit coherence that is resilient to platform vibrations. This demonstration of CMOS-compatible integrated photonic surface-trap fabrication, robust packaging and enhanced qubit coherence is a key advance in the development of portable trapped-ion quantum sensors and clocks, providing a way towards the complete, individual control of larger numbers of ions in quantum information processing systems.

Date: 2020
References: Add references at CitEc
Citations: View citations in EconPapers (4)

Downloads: (external link)
https://www.nature.com/articles/s41586-020-2811-x Abstract (text/html)
Access to the full text of the articles in this series is restricted.

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:nat:nature:v:586:y:2020:i:7830:d:10.1038_s41586-020-2811-x

Ordering information: This journal article can be ordered from
https://www.nature.com/

DOI: 10.1038/s41586-020-2811-x

Access Statistics for this article

Nature is currently edited by Magdalena Skipper

More articles in Nature from Nature
Bibliographic data for series maintained by Sonal Shukla () and Springer Nature Abstracting and Indexing ().