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

被引：44

作者：

Feng, L. ^{[1
,2
]}

Tan, W. L. ^{[1
,2
]}

De, A. ^{[1
,2
]}

Menon, A. ^{[1
,2
]}

Chu, A. ^{[1
,2
]}

Pagano, G. ^{[1
,2
,3
]}

Monroe, C. ^{[1
,2
]}

机构：

[1] Univ Maryland, Joint Quantum Inst, Ctr Quantum Informat & Comp Sci, College Pk, MD 20742 USA

[2] Univ Maryland, Dept Phys, College Pk, MD 20742 USA

[3] Rice Univ, Dept Phys & Astron, 610 Main St, Houston, TX 77005 USA

来源：

PHYSICAL REVIEW LETTERS | 2020年 / 125卷 / 05期

关键词：

QUANTUM; ATOM;

D O I：

10.1103/PhysRevLett.125.053001

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

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.

引用

页数：5

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