RSS icon
Twitter icon
Facebook icon
Vimeo icon
YouTube icon

Trapped Ion Quantum Information Processing with Squeezed Phonons

TitleTrapped Ion Quantum Information Processing with Squeezed Phonons
Publication TypeJournal Article
Year of Publication2019
AuthorsW. Ge, B. C. Sawyer, J. W. Britton, K. Jacobs, J. J. Bollinger, and M. Foss-Feig
JournalPhys. Rev. Lett.
Volume122
Pagination030501
Date PublishedJAN 24
Type of ArticleArticle
ISSN0031-9007
Abstract

Trapped ions offer a pristine platform for quantum computation and simulation, but improving their coherence remains a crucial challenge. Here, we propose and analyze a new strategy to enhance the coherent interactions in trapped ion systems via parametric amplification of the ions' motion-by squeezing the collective motional modes (phonons), the spin-spin interactions they mediate can be significantly enhanced. We illustrate the power of this approach by showing how it can enhance collective spin states useful for quantum metrology, and how it can improve the speed and fidelity of two-qubit gates in multi-ion systems, important ingredients for scalable trapped ion quantum computation. Our results are also directly relevant to numerous other physical platforms in which spin interactions are mediated by bosons.

DOI10.1103/PhysRevLett.122.030501