GEOMETRIC UNIVERSAL SINGLE QUBIT OPERATION OF COLD TWO-LEVEL ATOMS

被引：0

作者：

Imai, Hiromitsu ^{[1
]}

Morinaga, Atsuo ^{[1
]}

机构：

[1] Tokyo Univ Sci, Dept Phys, Chiba, Japan

来源：

PROCEEDINGS OF THE 9TH INTERNATIONAL SYMPOSIUM ON FOUNDATIONS OF QUANTUM MECHANICS IN THE LIGHT OF NEW TECHNOLOGY | 2009年

关键词：

geometric phase; resonant laser-controlled pulses; universal single qubit operation; cold two-level atom; atom interferometry; fidelity of operation; QUANTUM COMPUTATION; GATE;

D O I：

暂无

中图分类号：

O64 [物理化学（理论化学）、化学物理学]; O56 [分子物理学、原子物理学];

学科分类号：

070203 ; 070304 ; 081704 ; 1406 ;

摘要：

A universal single qubit operation on an ensemble of cold sodium atoms was accomplished by pure geometric rotations of the Bloch vector around axes 2 and 3 using carefully prepared resonant laser-controlled pulses. The phase shift between two states was measured using geometric atom interferometer and it was shifted double the phase difference of control with an uncertainty of 1%. The fidelity of the universal single qubit operation was evaluated to be 90%.

引用

页码：262 / 265

页数：4

共 18 条

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