Rolling quantum dice with a superconducting qubit

被引：31

作者：

Barends, R. ^{[1
]}

Kelly, J. ^{[1
]}

Veitia, A. ^{[2
]}

Megrant, A. ^{[1
]}

Fowler, A. G. ^{[1
,3
]}

Campbell, B. ^{[1
]}

Chen, Y. ^{[1
]}

Chen, Z. ^{[1
]}

Chiaro, B. ^{[1
]}

Dunsworth, A. ^{[1
]}

Hoi, I. -C. ^{[1
]}

Jeffrey, E. ^{[1
]}

Neill, C. ^{[1
]}

O'Malley, P. J. J. ^{[1
]}

Mutus, J. ^{[1
]}

Quintana, C. ^{[1
]}

Roushan, P. ^{[1
]}

Sank, D. ^{[1
]}

Wenner, J. ^{[1
]}

White, T. C. ^{[1
]}

Korotkov, A. N. ^{[2
]}

Cleland, A. N. ^{[1
]}

Martinis, John M. ^{[1
]}

机构：

[1] Univ Calif Santa Barbara, Dept Phys, Santa Barbara, CA 93106 USA

[2] Univ Calif Riverside, Dept Elect Engn, Riverside, CA 92521 USA

[3] Univ Melbourne, Sch Phys, Ctr Quantum Computat & Commun Technol, Melbourne, Vic 3010, Australia

来源：

PHYSICAL REVIEW A | 2014年 / 90卷 / 03期

关键词：

Atomic physics;

D O I：

10.1103/PhysRevA.90.030303

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

One of the key challenges in quantum information is coherently manipulating the quantum state. However, it is an outstanding question whether control can be realized with low error. Only gates from the Clifford group-containing pi, pi/2, and Hadamard gates-have been characterized with high accuracy. Here, we show how the Platonic solids enable implementing and characterizing larger gate sets. We find that all gates can be implemented with low error. The results fundamentally imply arbitrary manipulation of the quantum state can be realized with high precision, providing practical possibilities for designing efficient quantum algorithms.

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