The coherence of qubits based on single Ca+ ions

被引：117

作者：

Schmidt-Kaler, F ^{[1
]}

Gulde, S ^{[1
]}

Riebe, M ^{[1
]}

Deuschle, T ^{[1
]}

Kreuter, A ^{[1
]}

Lancaster, G ^{[1
]}

Becher, C ^{[1
]}

Eschner, J ^{[1
]}

Häffner, H ^{[1
]}

Blatt, R ^{[1
]}

机构：

[1] Inst Expt Phys, A-6020 Innsbruck, Austria

来源：

JOURNAL OF PHYSICS B-ATOMIC MOLECULAR AND OPTICAL PHYSICS | 2003年 / 36卷 / 03期

关键词：

D O I：

10.1088/0953-4075/36/3/319

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

Two-level ionic systems, where quantum information is encoded in long-lived states (quantum bits, qubits), are discussed extensively for quantum information processing, We present a collection of measurements which characterize the stability of a qubit based on the S-1/2-D-5/2 transition of sing le Ca-40(+) ions in a linear Paul trap. We find coherence times of similar or equal to1 ms, discuss the main technical limitations and outline possible improvements.

引用

页码：623 / 636

页数：14

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