Optimizing electrically controlled echo sequences for the exchange-only qubit
| Publikationstyp: | Zeitschriftenartikel |
| Publikationsstatus: | Published |
| Autor/innen: | Rohling, Niklas; Burkard, Guido |
| Erscheinungsjahr: | 2015 |
| Erschienen in: | Physical Review B ; 93 (2015), 20. - 205434. - ISSN 2469-9950. - eISSN 2469-9969 |
| ArXiv-ID: | arXiv:1510.04098 |
| DOI (zitierfähiger Link): | https://dx.doi.org/10.1103/PhysRevB.93.205434 |
| Zusammenfassung: |
Recently, West and Fong [New J. Phys. 14, 083002 (2012)] introduced an echo scheme for an exchange-only qubit, which relies entirely on the exchange-interaction. Here, we compare two different exchange-based sequences and two optimization strategies, Uhrig dynamical decoupling (UDD) and optimized filter function dynamical decoupling (OFDD), which were introduced for a single-spin qubit and are applied in this paper to the three-spin exchange-only qubit. The calculation shows that the adaption of the optimization concepts can be achieved by straight-forward calculation. We consider two types of noise spectra, Lorentzian and Ohmic noise. For both spectra, the results reveal a slight dependence of the performance on the choice of the echo sequence.
|
| Fachgebiet (DDC): | 530 Physik |
| Universitätsbibliographie: | Ja |
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ROHLING, Niklas, Guido BURKARD, 2015. Optimizing electrically controlled echo sequences for the exchange-only qubit. In: Physical Review B. 93(20), 205434. ISSN 2469-9950. eISSN 2469-9969. Available under: doi: 10.1103/PhysRevB.93.205434
@article{Rohling2015Optim-34902, title={Optimizing electrically controlled echo sequences for the exchange-only qubit}, year={2015}, doi={10.1103/PhysRevB.93.205434}, number={20}, volume={93}, issn={2469-9950}, journal={Physical Review B}, author={Rohling, Niklas and Burkard, Guido}, note={Article Number: 205434} }
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