Efficient Ground-State Cooling of Large Trapped-Ion Chains with an Electromagnetically-Induced-Transparency Tripod Scheme

L. Feng, W. L. Tan, A. De, A. Menon, A. Chu, G. Pagano, and C. Monroe
Phys. Rev. Lett. 125, 053001 – Published 29 July 2020
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Abstract

We report the electromagnetically-induced-transparency (EIT) cooling of a large trapped Yb+171 ion chain to the quantum ground state. Unlike conventional EIT cooling, we engage a four-level tripod structure and achieve fast sub-Doppler cooling over all motional modes. We observe simultaneous ground-state cooling across the complete transverse mode spectrum of up to 40 ions, occupying a bandwidth of over 3 MHz. The cooling time is observed to be less than 300μs, independent of the number of ions. Such efficient cooling across the entire spectrum is essential for high-fidelity quantum operations using trapped ion crystals for quantum simulators or quantum computers.

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  • Received 11 April 2020
  • Accepted 12 June 2020

DOI:https://doi.org/10.1103/PhysRevLett.125.053001

© 2020 American Physical Society

Physics Subject Headings (PhySH)

  1. Research Areas
Atomic, Molecular & OpticalQuantum Information, Science & Technology

Authors & Affiliations

L. Feng1,*, W. L. Tan1, A. De1, A. Menon1, A. Chu1, G. Pagano1,2, and C. Monroe1

  • 1Joint Quantum Institute, Center for Quantum Information and Computer Science, and Department of Physics, University of Maryland, College Park, Maryland 20742, USA
  • 2Department of Physics and Astronomy, Rice University, 6100 Main Street, Houston, Texas 77005, USA

  • *leifeng@umd.edu

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Issue

Vol. 125, Iss. 5 — 31 July 2020

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