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2016 | 130 | 5 | 1165-1168
Article title

Carrier Spin Dephasing during Spin-Preserving Tunneling in Coupled Quantum Dots

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EN
Abstracts
EN
In this contribution we study carrier tunneling in a system consisting of a pair of coupled quantum dots. We predict the presence of a spin dephasing channel in such a system, which is associated with a "welcher-weg" type of decoherence process occurring during carrier tunneling. In our model such a process is caused by a mismatch of g-factor values in two quantum dots in the presence of external magnetic field. This leads to a mismatch in spin Zeeman splitting between the dots and, in consequence, to the distinguishability of phonons emitted during the tunneling of carriers with opposite spins. Thus we demonstrate a process of spin dephasing without any direct spin-environment coupling present in the model.
Keywords
EN
Year
Volume
130
Issue
5
Pages
1165-1168
Physical description
Dates
published
2016-11
References
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Document Type
Publication order reference
YADDA identifier
bwmeta1.element.bwnjournal-article-appv130n501kz
Identifiers
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