Type of Publication: | Journal article |
Publication status: | Published |
Author: | Rohling, Niklas; Russ, Maximilian; Burkard, Guido |
Year of publication: | 2014 |
Published in: | Physical Review Letters ; 113 (2014), 17. - 176801. - ISSN 0031-9007. - eISSN 1079-7114 |
Pubmed ID: | 25379928 |
DOI (citable link): | https://dx.doi.org/10.1103/PhysRevLett.113.176801 |
Summary: |
The valley degree of freedom in the electronic band structure of silicon, graphene, and other materials is often considered to be an obstacle for quantum computing (QC) based on electron spins in quantum dots. Here we show that control over the valley state opens new possibilities for quantum information processing. Combining qubits encoded in the singlet-triplet subspace of spin and valley states allows for universal QC using a universal two-qubit gate directly provided by the exchange interaction. We show how spin and valley qubits can be separated in order to allow for single-qubit rotations.
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Subject (DDC): | 530 Physics |
Bibliography of Konstanz: | Yes |
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ROHLING, Niklas, Maximilian RUSS, Guido BURKARD, 2014. Hybrid spin and valley quantum computing with singlet-triplet qubits. In: Physical Review Letters. 113(17), 176801. ISSN 0031-9007. eISSN 1079-7114. Available under: doi: 10.1103/PhysRevLett.113.176801
@article{Rohling2014Hybri-32325, title={Hybrid spin and valley quantum computing with singlet-triplet qubits}, year={2014}, doi={10.1103/PhysRevLett.113.176801}, number={17}, volume={113}, issn={0031-9007}, journal={Physical Review Letters}, author={Rohling, Niklas and Russ, Maximilian and Burkard, Guido}, note={Article Number: 176801} }
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