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Open AccessProceedings

Non-Ideal X-Gate and Z-Gate in Semiconducting Spin Qubit Implementations

1
CNR-IMM Unit of Agrate Brianza, Via C. Olivetti 2, 20864 Agrate Brianza (MB), Italy
2
Dipartimento di Scienza dei Materiali, Università degli Studi di Milano-Bicocca, Via R. Cozzi 55, 20125 Milano, Italy
*
Author to whom correspondence should be addressed.
Presented at the 11th Italian Quantum Information Science Conference (IQIS2018), Catania, Italy, 17–20 September 2018.
Proceedings 2019, 12(1), 53; https://doi.org/10.3390/proceedings2019012053
Published: 19 November 2019
(This article belongs to the Proceedings of 11th Italian Quantum Information Science conference (IQIS2018))
Several spin qubit architectures have been proposed, theoretically investigated and realized at least on the scale of single devices in view of quantum computation and simulation applications. We focus our study on five qubit types: quantum dot spin qubit, double quantum dot singlet-triplet qubit, double quantum dot hybrid qubit, donor qubit, quantum dot spin-donor qubit and for each one we derived a compact effective Hamiltonian. Single qubit gate fidelities when time interval error is included are compared. A realistic set of values for the error parameters of amplitude controls linked to the z and x contribution appearing in the Hamiltonian models has been used. This study provides a ranking of the gate fidelities for the different qubit architectures highlighting which one is the most robust with respect to the considered control noises.
Keywords: spin qubit; noise; quantum computation spin qubit; noise; quantum computation
MDPI and ACS Style

Ferraro, E.; Fanciulli, M.; Michielis, M.D. Non-Ideal X-Gate and Z-Gate in Semiconducting Spin Qubit Implementations. Proceedings 2019, 12, 53.

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