Resource-Efficient Dissipative Entanglement of Two Trapped-Ion Qubits

被引：19

作者：

Cole, Daniel C. ^{[1
,6
]}

Erickson, Stephen D. ^{[1
,2
]}

Zarantonello, Giorgio ^{[1
,2
]}

Horn, Karl P. ^{[3
]}

Hou, Pan-Yu ^{[1
,2
]}

Wu, Jenny J. ^{[1
,2
]}

Slichter, Daniel H. ^{[1
]}

Reiter, Florentin ^{[4
]}

Koch, Christiane P. ^{[3
,5
]}

Leibfried, Dietrich ^{[1
]}

机构：

[1] Natl Inst Stand & Technol, 325 Broadway, Boulder, CO 80305 USA

[2] Univ Colorado, Dept Phys, Boulder, CO 80309 USA

[3] Univ Kassel, Theoret Phys, Heinrich Plett Str 40, D-34132 Kassel, Germany

[4] Swiss Fed Inst Technol, Inst Quantum Elect, Otto Stern Weg 1, CH-8093 Zurich, Switzerland

[5] Free Univ Berlin, Dahlem Ctr Complex Quantum Syst & Fachbereich Phy, Amimallee 14, D-14195 Berlin, Germany

[6] ColdQuanta Inc, 3030 Sterling Circle, Boulder, CO 80301 USA

来源：

PHYSICAL REVIEW LETTERS | 2022年 / 128卷 / 08期

基金：

瑞士国家科学基金会; 美国国家科学基金会;

关键词：

STEADY-STATE; QUANTUM; DECOHERENCE; DYNAMICS; MEMORY;

D O I：

10.1103/PhysRevLett.128.080502

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We demonstrate a simplified method for dissipative generation of an entangled state of two trapped-ion qubits. Our implementation produces its target state faster and with higher fidelity than previous demonstrations of dissipative entanglement generation and eliminates the need for auxiliary ions. The entangled singlet state is generated in similar to 7 ms with a fidelity of 0.949(4). The dominant source of infidelity is photon scattering. We discuss this error source and strategies for its mitigation.

引用

页数：7

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