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Proceeding Paper

Quantum Sensing 1/f Noise via Pulsed Control of a Two-Qubit Gate †

by
Antonio D’Arrigo
1,
Giuseppe Falci
1,2,3 and
Elisabetta Paladino
1,2,3,*
1
Dipartimento di Fisica e Astronomia, Università di Catania, Via S. Sofia 64, 95123 Catania, Italy
2
CNR-IMM, Catania Università, Via S. Sofia 64, 95123 Catania, Italy
3
Istituto Nazionale di Fisica Nucleare, Sez. di Catania, Via Santa Sofia 64, 95123 Catania, 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), 29; https://doi.org/10.3390/proceedings2019012029
Published: 25 July 2019
(This article belongs to the Proceedings of 11th Italian Quantum Information Science conference (IQIS2018))
Versions Notes

Abstract

Dynamical decoupling sequences are a convenient tool to reduce decoherence due to intrinsic fluctuations with 1 / f power spectrum hindering quantum circuits. We study the possibility to achieve an efficient universal two-qubit gate in the presence of 1 / f noise by periodic and Carr-Purcell dynamical decoupling. The high degree of selectivity achieved by these protocols also provides a valuable tool to infer noise characteristics, as the high-frequency cut off and the noise variance. Different scalings of the gate error with noise variance signal the contribution of different noise statistical properties to the gate error.
Keywords: 1/f noise; quantum sensing; dynamical decoupling; quantum gates 1/f noise; quantum sensing; dynamical decoupling; quantum gates

Share and Cite

MDPI and ACS Style

D’Arrigo, A.; Falci, G.; Paladino, E. Quantum Sensing 1/f Noise via Pulsed Control of a Two-Qubit Gate. Proceedings 2019, 12, 29. https://doi.org/10.3390/proceedings2019012029

AMA Style

D’Arrigo A, Falci G, Paladino E. Quantum Sensing 1/f Noise via Pulsed Control of a Two-Qubit Gate. Proceedings. 2019; 12(1):29. https://doi.org/10.3390/proceedings2019012029

Chicago/Turabian Style

D’Arrigo, Antonio, Giuseppe Falci, and Elisabetta Paladino. 2019. "Quantum Sensing 1/f Noise via Pulsed Control of a Two-Qubit Gate" Proceedings 12, no. 1: 29. https://doi.org/10.3390/proceedings2019012029

APA Style

D’Arrigo, A., Falci, G., & Paladino, E. (2019). Quantum Sensing 1/f Noise via Pulsed Control of a Two-Qubit Gate. Proceedings, 12(1), 29. https://doi.org/10.3390/proceedings2019012029

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