Highly Polarizable Rydberg Ion in a Paul Trap

Gerard Higgins, Fabian Pokorny, Chi Zhang, and Markus Hennrich
Phys. Rev. Lett. 123, 153602 – Published 11 October 2019
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Abstract

Usually the influence of the quadratic Stark effect on an ion’s trapping potential is minuscule and only needs to be considered in atomic clock experiments. In this work we excite a trapped ion to a Rydberg state with polarizability 8 orders of magnitude higher than a low-lying electronic state; we find that the highly polarizable ion experiences a vastly different trapping potential owing to the Stark effect. We observe changes in trap stiffness, equilibrium position, and minimum potential, which can be tuned using the trapping electric fields. These effects lie at the heart of several proposed studies, including a high-fidelity submicrosecond entangling operation; in addition we demonstrate these effects may be used to minimize ion micromotion. Mitigation of Stark effects is important for coherent control of Rydberg ions; we illustrate this by carrying out the first Rabi oscillations between a low-lying electronic state and a Rydberg state of an ion.

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  • Received 18 April 2019

DOI:https://doi.org/10.1103/PhysRevLett.123.153602

© 2019 American Physical Society

Physics Subject Headings (PhySH)

Quantum Information, Science & Technology

Authors & Affiliations

Gerard Higgins1,2,*, Fabian Pokorny1, Chi Zhang1, and Markus Hennrich1

  • 1Department of Physics, Stockholm University, SE-106 91 Stockholm, Sweden
  • 2Institut für Experimentalphysik, Universität Innsbruck, AT-6020 Innsbruck, Austria

  • *gerard.higgins@fysik.su.se

See Also

Shuttling of Rydberg Ions for Fast Entangling Operations

J. Vogel, W. Li, A. Mokhberi, I. Lesanovsky, and F. Schmidt-Kaler
Phys. Rev. Lett. 123, 153603 (2019)

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Vol. 123, Iss. 15 — 11 October 2019

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