Observation of cascaded two-photon-induced transitions between fluxoid states of a SQUID

被引：20

作者：

Han, SY ^{[1
]}

Rouse, R

Lukens, JE

机构：

[1] Univ Kansas, Dept Phys & Astron, Lawrence, KS 66045 USA

[2] Sun Microsyst Inc, Sunnyvale, CA 94086 USA

[3] SUNY Stony Brook, Dept Phys & Astron, Stony Brook, NY 11794 USA

来源：

PHYSICAL REVIEW LETTERS | 2000年 / 84卷 / 06期

关键词：

D O I：

10.1103/PhysRevLett.84.1300

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We present evidence for transitions between fluxoid wells of a SQUID due to cascaded, two-photon processes. Such transitions are evidenced by an anomalous dependence on the transition rate from the one-photon resonant level within the initial well, which cannot be explained by previously observed macroscopic resonant tunneling. These two-photon processes may be a significant source of decoherence in SQUlD qubits subject to microwave radiation.

引用

页码：1300 / 1303

页数：4

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