Coupling Two Distant Double Quantum Dots with a Microwave Resonator

Nano Letters
Guang-Wei DengGuo-Ping Guo

Abstract

We fabricated a hybrid device with two distant graphene double quantum dots (DQDs) and a microwave resonator. A nonlinear response is observed in the resonator reflection amplitude when the two DQDs are jointly tuned to the vicinity of the degeneracy points. This observation can be well fitted by the Tavis-Cummings (T-C) model which describes two two-level systems coupling with one photonic field. Furthermore, the correlation between the DC currents in the two DQDs is studied. A nonzero cross-current correlation is observed which has been theoretically predicted to be an important sign of nonlocal coupling between two distant systems. Our results explore T-C physics in electronic transport and also contribute to the study of nonlocal transport and future implementations of remote electronic entanglement.

References

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Jan 31, 2015·Scientific Reports·Xiang-Xiang SongGuo-Ping Guo

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Citations

Aug 4, 2016·Nano Letters·Guang-Wei DengGuo-Ping Guo
Mar 27, 2018·Journal of Physics. Condensed Matter : an Institute of Physics Journal·Enrique P BlairCraig S Lent
Sep 20, 2017·Journal of Physics. Condensed Matter : an Institute of Physics Journal·Audrey CottetTakis Kontos
Dec 13, 2019·Journal of Physics. Condensed Matter : an Institute of Physics Journal·Maximilian RussGuido Burkard
Apr 4, 2017·Journal of Physics. Condensed Matter : an Institute of Physics Journal·Haonan XiongLuming Duan
Apr 2, 2016·Physical Review Letters·Mauro CirioFranco Nori
Dec 5, 2015·Physical Review Letters·Neill LambertChristian Flindt
Jul 23, 2016·Nanoscale·Shu-Xiao LiGuo-Ping Guo
May 31, 2019·Physical Review Letters·Mauro CirioFranco Nori
Oct 19, 2017·Scientific Reports·Thien NguyenMatthew R James
May 28, 2016·Physical Review Letters·Kristen Kaasbjerg, Antti-Pekka Jauho
Jul 27, 2019·Entropy·Michael RidleyRiku Tuovinen

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