Hauptseite > Publikationsdatenbank > Mitigating parasitic interactions in superconducting circuits > print |
001 | 916715 | ||
005 | 20230123101907.0 | ||
037 | _ | _ | |a FZJ-2023-00055 |
100 | 1 | _ | |a Xu, Xuexin |0 P:(DE-Juel1)176178 |b 0 |e Corresponding author |u fzj |
111 | 2 | _ | |a WE-Heraeus-Seminar / Hybrid Solid State Quantum Circuits, Sensors, and Metrology |c Online-Seminar |d 2021-12-13 - 2021-12-16 |w Germany |
245 | _ | _ | |a Mitigating parasitic interactions in superconducting circuits |
260 | _ | _ | |c 2021 |
336 | 7 | _ | |a Conference Paper |0 33 |2 EndNote |
336 | 7 | _ | |a Other |2 DataCite |
336 | 7 | _ | |a INPROCEEDINGS |2 BibTeX |
336 | 7 | _ | |a conferenceObject |2 DRIVER |
336 | 7 | _ | |a LECTURE_SPEECH |2 ORCID |
336 | 7 | _ | |a Conference Presentation |b conf |m conf |0 PUB:(DE-HGF)6 |s 1672815779_11107 |2 PUB:(DE-HGF) |x Invited |
520 | _ | _ | |a Implementation of high-performance two-qubit gates is a key factor for scalable quantum computation. However, the state-of-the-art superconducting two-qubit gates are yet far from being perfect due to the parasitic ZZ coupling. In this poster, we introduce a general theory to evaluate the “static” ZZ interaction between seemingly idle qubits [1] as well as the “dynamical” ZZ interaction between driving entangled qubits, and find the characteristics of both static and dynamical ZZ freedoms [2]. Moreover, we demonstrate the two freedoms can be realized in one circuit with a tunable coupler so as to eliminate ZZ interaction throughout gate operations [3]. Our theory shows that using these methods the fidelity of a CR gate is able to achieve the coherence limit.References[1] J. Ku, X. Xu, M. Brink, D. C. McKay, J. B. Hertzberg, M. H. Ansari, B. L. T Plourde, Suppression of unwanted ZZ interactions in a hybrid two-qubit system. Physical Review Letters 125, 200504 (2020)[2] X. Xu and M. H. Ansari, ZZ freedom in two-qubit gates. Physical Review Applied 15, 064074 (2021)[3] X. Xu and M. H. Ansari, Parasitic free gates. In preparation |
536 | _ | _ | |a 5224 - Quantum Networking (POF4-522) |0 G:(DE-HGF)POF4-5224 |c POF4-522 |f POF IV |x 0 |
700 | 1 | _ | |a Ansari, Mohammad |0 P:(DE-Juel1)171686 |b 1 |u fzj |
909 | C | O | |o oai:juser.fz-juelich.de:916715 |p VDB |
910 | 1 | _ | |a Forschungszentrum Jülich |0 I:(DE-588b)5008462-8 |k FZJ |b 0 |6 P:(DE-Juel1)176178 |
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914 | 1 | _ | |y 2022 |
920 | _ | _ | |l yes |
920 | 1 | _ | |0 I:(DE-Juel1)PGI-2-20110106 |k PGI-2 |l Theoretische Nanoelektronik |x 0 |
980 | _ | _ | |a conf |
980 | _ | _ | |a VDB |
980 | _ | _ | |a I:(DE-Juel1)PGI-2-20110106 |
980 | _ | _ | |a UNRESTRICTED |
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