Title | Efficient Ground-State Cooling of Large Trapped-Ion Chains with an Electromagnetically-Induced-Transparency Tripod Scheme |
Publication Type | Journal Article |
Year of Publication | 2020 |
Authors | L.. Feng, W.. L. Tan, A.. De, A.. Menon, A.. Chu, G.. Pagano, and C.. Monroe |
Journal | Phys. Rev. Lett. |
Volume | 125 |
Pagination | 053001 |
Date Published | JUL 29 |
Type of Article | Article |
ISSN | 0031-9007 |
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 groundstate 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 300 mu s, 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. |
DOI | 10.1103/PhysRevLett.125.053001 |