Coherent Error Suppression in Multiqubit Entangling Gates

被引：74

作者：

Hayes, D. ^{[1
]}

Clark, S. M.

Debnath, S.

Hucul, D.

Inlek, I. V.

Lee, K. W.

Quraishi, Q.

Monroe, C.

机构：

[1] Univ Maryland, Joint Quantum Inst, College Pk, MD 20742 USA

来源：

PHYSICAL REVIEW LETTERS | 2012年 / 109卷 / 02期

关键词：

TRAPPED IONS; QUANTUM SIMULATION; ENTANGLEMENT; STATES;

D O I：

10.1103/PhysRevLett.109.020503

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We demonstrate a simple pulse shaping technique designed to improve the fidelity of spin-dependent force operations commonly used to implement entangling gates in trapped ion systems. This extension of the Molmer-Sorensen gate can theoretically suppress the effects of certain frequency and timing errors to any desired order and is demonstrated through Walsh modulation of a two qubit entangling gate on trapped atomic ions. The technique is applicable to any system of qubits coupled through collective harmonic oscillator modes.

引用

页数：5

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