Type of Publication: | Journal article |
Publication status: | Published |
Author: | Benito, Monica; Mi, Xiao; Taylor, Jacob M.; Petta, Jason R.; Burkard, Guido |
Year of publication: | 2017 |
Published in: | Physical Review B ; 96 (2017), 23. - 235434. - ISSN 2469-9950. - eISSN 2469-9969 |
ArXiv-ID: | arXiv:1710.02508 |
DOI (citable link): | https://dx.doi.org/10.1103/PhysRevB.96.235434 |
Summary: |
The interaction of qubits via microwave frequency photons enables long-distance qubit-qubit coupling and facilitates the realization of a large-scale quantum processor. However, qubits based on electron spins in semiconductor quantum dots have proven challenging to couple to microwave photons. In this theoretical work we show that a sizable coupling for a single electron spin is possible via spin-charge hybridization using a magnetic field gradient in a silicon double quantum dot. Based on parameters already shown in recent experiments, we predict optimal working points to achieve a coherent spin-photon coupling, an essential ingredient for the generation of long-range entanglement. Furthermore, we employ input-output theory to identify observable signatures of spin-photon coupling in the cavity output field, which may provide guidance to the experimental search for strong coupling in such spin-photon systems and opens the way to cavity-based readout of the spin qubit.
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Subject (DDC): | 530 Physics |
Bibliography of Konstanz: | Yes |
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BENITO, Monica, Xiao MI, Jacob M. TAYLOR, Jason R. PETTA, Guido BURKARD, 2017. Input-output theory for spin-photon coupling in Si double quantum dots. In: Physical Review B. 96(23), 235434. ISSN 2469-9950. eISSN 2469-9969. Available under: doi: 10.1103/PhysRevB.96.235434
@article{Benito2017Input-41515, title={Input-output theory for spin-photon coupling in Si double quantum dots}, year={2017}, doi={10.1103/PhysRevB.96.235434}, number={23}, volume={96}, issn={2469-9950}, journal={Physical Review B}, author={Benito, Monica and Mi, Xiao and Taylor, Jacob M. and Petta, Jason R. and Burkard, Guido}, note={Article Number: 235434} }
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