Construction of robust Rydberg controlled-phase gates

被引：37
|
作者：
Shen, Cai-Peng [1 ]
Wu, Jin-Lei [2 ]
Su, Shi-Lei [1 ,3 ]
Liang, Erjun [1 ]
机构：
[1] Zhengzhou Univ, Sch Phys & Engn, Zhengzhou 450001, Henan, Peoples R China
[2] Harbin Inst Technol, Dept Phys, Harbin 150001, Heilongjiang, Peoples R China
[3] Aarhus Univ, Dept Phys & Astron, Ny Munkegade 120, DK-8000 Aarhus C, Denmark
来源：
OPTICS LETTERS | 2019年 / 44卷 / 08期
基金：
中国国家自然科学基金;
关键词：
STEP IMPLEMENTATION; QUANTUM GATES; BLOCKADE; QUBIT; ATOMS;
D O I：
10.1364/OL.44.002036
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
One scheme is presented to construct the robust multi-qubit arbitrary-phase controlled-phase gate (CPG) with one control and multiple target qubits in Rydberg atoms using the Lewis-Riesenfeld (LR) invariant method. The scheme is not limited by adiabatic condition while preserves the robustness against control parameter variations of adiabatic evolution. Comparing with the adiabatic case, our scheme does not require very strong Rydberg interaction strength. Taking the construction of two-qubit pi CPG as an example, our scheme is more robust against control parameter variations than non-adiabatic scheme and faster than adiabatic scheme. (C) 2019 Optical Society of America
引用
收藏
页码：2036 / 2039
页数：4
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