Heralded Quantum Gate between Remote Quantum Memories

被引：54

作者：

Maunz, P. ^{[1
,2
]}

Olmschenk, S. ^{[1
,2
]}

Hayes, D. ^{[1
,2
]}

Matsukevich, D. N. ^{[1
,2
]}

Duan, L. -M. ^{[3
,4
]}

Monroe, C. ^{[1
,2
]}

机构：

[1] Univ Maryland, Dept Phys, Joint Quantum Inst, College Pk, MD 20742 USA

[2] Natl Inst Stand & Technol, College Pk, MD 20742 USA

[3] Univ Michigan, FOCUS Ctr, Ann Arbor, MI 48109 USA

[4] Univ Michigan, Dept Phys, Ann Arbor, MI 48109 USA

来源：

PHYSICAL REVIEW LETTERS | 2009年 / 102卷 / 25期

基金：

美国国家科学基金会;

关键词：

ENTANGLEMENT; PHOTONS; ATOM; TELEPORTATION; COMPUTER; CAVITY; STATES; IONS;

D O I：

10.1103/PhysRevLett.102.250502

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We demonstrate a probabilistic entangling quantum gate between two distant trapped ytterbium ions. The gate is implemented between the hyperfine "clock" state atomic qubits and mediated by the interference of two emitted photons carrying frequency encoded qubits. Heralded by the coincidence detection of these two photons, the gate has an average output state fidelity of 89 +/- 2%. This entangling gate together with single qubit operations is sufficient to generate large entangled cluster states for scalable quantum computing.

引用

页数：4

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