Detection-Enhanced Steady State Entanglement with Ions

被引：23

作者：

Bentley, C. D. B. ^{[1
]}

Carvalho, A. R. R. ^{[1
,2
]}

Kielpinski, D. ^{[3
]}

Hope, J. J. ^{[1
]}

机构：

[1] Australian Natl Univ, Res Sch Phys & Engn, Dept Quantum Sci, Canberra, ACT 0200, Australia

[2] Australian Natl Univ, ARC Ctr Quantum Computat & Commun Technol, Canberra, ACT 0200, Australia

[3] Griffith Univ, Ctr Quantum Dynam, Brisbane, Qld 4111, Australia

来源：

PHYSICAL REVIEW LETTERS | 2014年 / 113卷 / 04期

基金：

澳大利亚研究理事会;

关键词：

TRAPPED IONS; QUANTUM BITS; DECOHERENCE; DRIVEN;

D O I：

10.1103/PhysRevLett.113.040501

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Driven dissipative steady state entanglement schemes take advantage of coupling to the environment to robustly prepare highly entangled states. We present a scheme for two trapped ions to generate a maximally entangled steady state with fidelity above 0.99, appropriate for use in quantum protocols. Furthermore, we extend the scheme by introducing detection of our dissipation process, significantly enhancing the fidelity. Our scheme is robust to anomalous heating and requires no sympathetic cooling.

引用

页数：5

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