Higher-order spin and charge dynamics in a quantum dot-lead hybrid system

Otsuka, Tomohiro and Nakajima, Takashi and Delbecq, Matthieu R. and Amaha, Shinichi and Yoneda, Jun and Takeda, Kenta and Allison, Giles and Stano, Peter and Noiri, Akito and Ito, Takumi and Loss, Daniel and Ludwig, Arne and Wieck, Andreas D. and Tarucha, Seigo. (2017) Higher-order spin and charge dynamics in a quantum dot-lead hybrid system. Scientific reports, 7 (1). p. 12201.

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Official URL: https://edoc.unibas.ch/87593/

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Understanding the dynamics of open quantum systems is important and challenging in basic physics and applications for quantum devices and quantum computing. Semiconductor quantum dots offer a good platform to explore the physics of open quantum systems because we can tune parameters including the coupling to the environment or leads. Here, we apply the fast single-shot measurement techniques from spin qubit experiments to explore the spin and charge dynamics due to tunnel coupling to a lead in a quantum dot-lead hybrid system. We experimentally observe both spin and charge time evolution via first- and second-order tunneling processes, and reveal the dynamics of the spin-flip through the intermediate state. These results enable and stimulate the exploration of spin dynamics in dot-lead hybrid systems, and may offer useful resources for spin manipulation and simulation of open quantum systems.
Faculties and Departments:05 Faculty of Science > Departement Physik > Physik > Theoretische Physik Mesoscopics (Loss)
UniBasel Contributors:Loss, Daniel
Item Type:Article, refereed
Article Subtype:Research Article
Publisher:Nature Publishing Group
Note:Publication type according to Uni Basel Research Database: Journal article
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Last Modified:06 Apr 2022 12:40
Deposited On:06 Apr 2022 12:40

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