Floquet Spectroscopy of a Strongly Driven Quantum Dot Charge Qubit with a Microwave Resonator

被引：36

作者：

Koski, J., V ^{[1
]}

Landig, A. J. ^{[1
]}

Palyi, A. ^{[2
,3
]}

Scarlino, P. ^{[1
]}

Reichl, C. ^{[1
]}

Wegscheider, W. ^{[1
]}

Burkard, G. ^{[4
]}

Wallraff, A. ^{[1
]}

Ensslin, K. ^{[1
]}

Ihn, T. ^{[1
]}

机构：

[1] Swiss Fed Inst Technol, Dept Phys, CH-8093 Zurich, Switzerland

[2] Budapest Univ Technol & Econ, Dept Phys, H-1111 Budapest, Hungary

[3] Budapest Univ Technol & Econ, MTA BME Exot Quantum Phases Momentum Res Grp, H-1111 Budapest, Hungary

[4] Univ Konstanz, Dept Phys, D-78457 Constance, Germany

来源：

PHYSICAL REVIEW LETTERS | 2018年 / 121卷 / 04期

基金：

瑞士国家科学基金会;

关键词：

SPIN;

D O I：

10.1103/PhysRevLett.121.043603

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We experimentally investigate a strongly driven GaAs double quantum dot charge qubit weakly coupled to a superconducting microwave resonator. The Floquet states emerging from strong driving are probed by tracing the qubit-resonator resonance condition. In this way, we probe the resonance of a qubit that is driven in an adiabatic, a nonadiabatic, or an intermediate rate, showing distinct quantum features of multiphoton processes and a fringe pattern similar to Landau-Zener-Stuckelberg interference. Our resonant detection scheme enables the investigation of novel features when the drive frequency is comparable to the resonator frequency. Models based on the adiabatic approximation, rotating wave approximation, and Floquet theory explain our experimental observations.

引用

页数：6

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