Designing arbitrary single-axis rotations robust against perpendicular time-dependent noise

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dc.contributor.authorLi, Bikunen
dc.contributor.authorCalderon-Vargas, Fernando A.en
dc.contributor.authorZeng, Junkaien
dc.contributor.authorBarnes, Edwin Flemingen
dc.date.accessioned2022-03-30T19:01:39Zen
dc.date.available2022-03-30T19:01:39Zen
dc.date.issued2021-09en
dc.description.abstractLow-frequency time-dependent noise is one of the main obstacles on the road toward a fully scalable quantum computer. The majority of solid-state qubit platforms, from superconducting circuits to spins in semiconductors, are greatly affected by 1/f noise. Among the different control techniques used to counteract noise effects on the system, dynamical decoupling sequences are one of the most effective. However, most dynamical decoupling sequences require unbounded and instantaneous pulses, which are unphysical and can only implement identity operations. Among methods that do restrict to bounded control fields, there remains a need for protocols that implement arbitrary gates with lab-ready control fields. In this work, we introduce a protocol to design bounded and continuous control fields that implement arbitrary single-axis rotations while shielding the system from low-frequency time-dependent noise perpendicular to the control axis. We show the versatility of our method by presenting a set of non-negative-only control pulses that are immediately applicable to quantum systems with constrained control, such as singlet-triplet spin qubits. Finally, we demonstrate the robustness of our control pulses against classical 1/f noise and noise modeled with a random quantum bath, showing that our pulses can even outperform ideal dynamical decoupling sequences.en
dc.description.notesThis work is supported by the US Army Research Office (W911NF-17-0287) and by the US Office of Naval Research (N00014-17-1-2971).en
dc.description.sponsorshipUS Army Research Office [W911NF-17-0287]; US Office of Naval ResearchOffice of Naval Research [N00014-17-1-2971]en
dc.description.versionPublished versionen
dc.format.mimetypeapplication/pdfen
dc.identifier.doihttps://doi.org/10.1088/1367-2630/ac22eaen
dc.identifier.issn1367-2630en
dc.identifier.issue9en
dc.identifier.other93032en
dc.identifier.urihttp://hdl.handle.net/10919/109504en
dc.identifier.volume23en
dc.language.isoenen
dc.rightsCreative Commons Attribution 4.0 Internationalen
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/en
dc.subjectquantum controlen
dc.subjectdynamical decouplingen
dc.subjectquantum gatesen
dc.subjectdecoherenceen
dc.titleDesigning arbitrary single-axis rotations robust against perpendicular time-dependent noiseen
dc.title.serialNew Journal of Physicsen
dc.typeArticle - Refereeden
dc.type.dcmitypeTexten

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