Experimental implementation of high-fidelity unconventional geometric quantum gates using an NMR interferometer

被引：62

作者：

Du, Jiangfeng ^{[1
]}

Zou, Ping

Wang, Z. D.

机构：

[1] Univ Sci & Technol China, Hefei Natl Lab Phys Sci Microsclae, Anhua 230026, Peoples R China

[2] Univ Sci & Technol China, Dept Modern Phys, Anhua 230026, Peoples R China

[3] Univ Dortmund, Fachbereich Phys, D-44221 Dortmund, Germany

[4] Univ Hong Kong, Dept Phys, Hong Kong, Hong Kong, Peoples R China

[5] Univ Hong Kong, Ctr Theoret & Computat Phys, Hong Kong, Hong Kong, Peoples R China

[6] Nanjing Univ, Natl Lab Solid State Microstruct, Nanjing 210093, Peoples R China

来源：

PHYSICAL REVIEW A | 2006年 / 74卷 / 02期

关键词：

D O I：

10.1103/PhysRevA.74.020302

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

Following a key idea of unconventional geometric quantum computation developed earlier [S. L. Zhu and Z. D. Wang, Phys. Rev. Lett. 91, 187902 (2003)], here we propose a more general scheme in such an intriguing way: gamma(d)=alpha(g)+eta gamma(g), where gamma(d) and gamma(g) are respectively the dynamic and geometric phases accumulated in the quantum gate operation, with eta as a constant and alpha(g) being dependent only on the geometric feature of the operation. More interestingly, we demonstrate an experiment to implement a universal set of such kind of generalized unconventional geometric quantum gates with high fidelity in an NMR system.

引用

页数：4

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