Generation of large coherent states by bang–bang control of a trapped-ion oscillator

J. Alonso (), F. M. Leupold, Z. U. Solèr, M. Fadel, M. Marinelli, B. C. Keitch, V. Negnevitsky and J. P. Home ()
Additional contact information
J. Alonso: Institute for Quantum Electronics, ETH Zürich
F. M. Leupold: Institute for Quantum Electronics, ETH Zürich
Z. U. Solèr: Institute for Quantum Electronics, ETH Zürich
M. Fadel: Institute for Quantum Electronics, ETH Zürich
M. Marinelli: Institute for Quantum Electronics, ETH Zürich
B. C. Keitch: Institute for Quantum Electronics, ETH Zürich
V. Negnevitsky: Institute for Quantum Electronics, ETH Zürich
J. P. Home: Institute for Quantum Electronics, ETH Zürich

Nature Communications, 2016, vol. 7, issue 1, 1-8

Abstract: Abstract Fast control of quantum systems is essential to make use of quantum properties before they degrade by decoherence. This is important for quantum-enhanced information processing, as well as for pushing quantum systems towards the boundary between quantum and classical physics. ‘Bang–bang’ control attains the ultimate speed limit by making large changes to control fields much faster than the system can respond, but is often challenging to implement experimentally. Here we demonstrate bang–bang control of a trapped-ion oscillator using nanosecond switching of the trapping potentials. We perform controlled displacements with which we realize coherent states with up to 10,000 quanta of energy. We use these displaced states to verify the form of the ion-light interaction at high excitations far outside the usual regime of operation. These methods provide new possibilities for quantum-state manipulation and generation, alongside the potential for a significant increase in operational clock speed for trapped-ion quantum information processing.

Date: 2016
References: Add references at CitEc
Citations:

Downloads: (external link)
https://www.nature.com/articles/ncomms11243 Abstract (text/html)

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:natcom:v:7:y:2016:i:1:d:10.1038_ncomms11243

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

DOI: 10.1038/ncomms11243

Access Statistics for this article

Nature Communications is currently edited by Nathalie Le Bot, Enda Bergin and Fiona Gillespie

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