Universal gate-set for trapped-ion qubits using a narrow linewidth diode laser

被引：56

作者：

Akerman, Nitzan ^{[1
]}

Navon, Nir ^{[1
]}

Kotler, Shlomi ^{[1
]}

Glickman, Yinnon ^{[1
]}

Ozeri, Roee ^{[1
]}

机构：

[1] Weizmann Inst Sci, Dept Phys Complex Syst, IL-76100 Rehovot, Israel

来源：

NEW JOURNAL OF PHYSICS | 2015年 / 17卷

基金：

欧洲研究理事会;

关键词：

quantum information; trapped ions; universal gate set; FREQUENCY STABILIZATION; QUANTUM;

D O I：

10.1088/1367-2630/17/11/113060

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We report on the implementation of a high fidelity universal gate-set on optical qubits based on trapped Sr-88(+) ions for the purpose of quantum information processing. All coherent operations were performed using a narrow linewidth diode laser. We employed a master-slave configuration for the laser, where an ultra low expansion glass Fabry-Perot cavity is used as a stable reference as well as a spectral filter. We characterized the laser spectrum using the ions with a modified Ramsey sequence which eliminated the affect of the magnetic field noise. We demonstrated high fidelity single qubit gates with individual addressing, based on inhomogeneous micromotion, on a two-ion chain as well as the Molmer-Sorensen two-qubit entangling gate.

引用

页数：14