Quantum Information Processing with Nanomechanical Qubits

被引：136

作者：

Rips, Simon ^{[1
]}

Hartmann, Michael J. ^{[1
]}

机构：

[1] Tech Univ Munich, Dept Phys, D-85748 Garching, Germany

来源：

PHYSICAL REVIEW LETTERS | 2013年 / 110卷 / 12期

关键词：

GROUND-STATE; MECHANICAL RESONATORS; SYSTEMS; MOTION;

D O I：

10.1103/PhysRevLett.110.120503

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We introduce an approach to quantum information processing where the information is stored in the motional degrees of freedom of nanomechanical devices. The qubits of our approach are formed by the two lowest energy levels of mechanical resonators, which are tuned to be strongly anharmonic by suitable electrostatic fields. Single qubit rotations are conducted by radio-frequency voltage pulses that are applied to individual resonators. Two-qubit entangling gates in turn are implemented via a coupling of two qubits to a common optical resonance of a high finesse cavity. We find that gate fidelities exceeding 99% can be achieved for realistic experimental parameters. DOI: 10.1103/PhysRevLett.110.120503

引用

页数：5

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