Fast phase gates with trapped ions

被引：44

作者：

Palmero, M. ^{[1
]}

Martinez-Garaot, S. ^{[1
]}

Leibfried, D. ^{[2
]}

Wineland, D. J. ^{[2
]}

Muga, J. G. ^{[1
]}

机构：

[1] Univ Basque Country, Dept Quim Fis, Apartado Postal 644, Bilbao 48080, Spain

[2] NIST, 325 Broadway, Boulder, CO 80305 USA

来源：

PHYSICAL REVIEW A | 2017年 / 95卷 / 02期

关键词：

QUANTUM COMPUTATION;

D O I：

10.1103/PhysRevA.95.022328

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We implement faster-than-adiabatic two-qubit phase gates using smooth state-dependent forces. The forces are designed to leave no final motional excitation, independently of the initial motional state in the harmonic small-oscillations limit. They are simple, explicit functions of time and the desired logical phase of the gate, and are based on quadratic invariants of motion and Lewis-Riesenfeld phases of the normal modes.

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页数：13

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