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Stabilization of po...
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Ivády, ViktorLinköpings universitet,Teoretisk Fysik,Tekniska fakulteten,Wigner Res Ctr Phys, Hungary
(författare)
Stabilization of point-defect spin qubits by quantum wells
- Artikel/kapitelEngelska2019
Förlag, utgivningsår, omfång ...
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2019-12-06
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NATURE PUBLISHING GROUP,2019
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electronicrdacarrier
Nummerbeteckningar
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LIBRIS-ID:oai:DiVA.org:liu-162948
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https://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-162948URI
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https://doi.org/10.1038/s41467-019-13495-6DOI
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Språk:engelska
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Sammanfattning på:engelska
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Ämneskategori:ref swepub-contenttype
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Ämneskategori:art swepub-publicationtype
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Funding Agencies|MTA Premium Postdoctoral Research Program; Knut and Alice Wallenberg Foundation through WBSQD2 project [2018.0071]; Swedish Government Strategic Research Areas in Materials Science on Functional Materials at Linkoping University (Faculty Grant SFO-Mat-LiU) [2009-00971]; Swedish e-Science Centre (SeRC); Swedish Research CouncilSwedish Research Council [VR 2016-04068]; Carl-Trygger Stiftelse for Vetenskaplig Forskning [CTS 15:339]; Ministry of Education and Science of the Russian FederationMinistry of Education and Science, Russian Federation [K2-2019-001, 211]; Hungarian NKFIH grants of the National Excellence Program of Quantumcoherent materials project [KKP129866]; EU QuantERA Nanospin project [127902]; EU H2020 Quantum Technology Flagship project ASTERIQS [820394]; NVKP project [NVKP_16-1-2016-0043]; National Quantum Technology Program [2017-1.2.1-NKP-2017-00001]; U.S. Department of Energy, Office of Science, Basic Energy Sciences, Materials Science and Engineering DivisionUnited States Department of Energy (DOE); DOE Office of ScienceUnited States Department of Energy (DOE) [DE-AC02-06CH11357]; Center for Nanoscale Materials, a U.S. Department of Energy Office of Science User FacilityUnited States Department of Energy (DOE) [DE-AC02-06CH11357]; DOE, Office of Basic Energy SciencesUnited States Department of Energy (DOE)
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Defect-based quantum systems in wide bandgap semiconductors are strong candidates for scalable quantum-information technologies. However, these systems are often complicated by charge-state instabilities and interference by phonons, which can diminish spin-initialization fidelities and limit room-temperature operation. Here, we identify a pathway around these drawbacks by showing that an engineered quantum well can stabilize the charge state of a qubit. Using density-functional theory and experimental synchrotron X-ray diffraction studies, we construct a model for previously unattributed point defect centers in silicon carbide as a near-stacking fault axial divacancy and show how this model explains these defects robustness against photoionization and room temperature stability. These results provide a materials-based solution to the optical instability of color centers in semiconductors, paving the way for the development of robust single-photon sources and spin qubits.
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Biuppslag (personer, institutioner, konferenser, titlar ...)
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Davidsson, JoelLinköpings universitet,Teoretisk Fysik,Tekniska fakulteten(Swepub:liu)joeda01
(författare)
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Delegan, NazarArgonne Natl Lab, IL USA; Argonne Natl Lab, IL USA
(författare)
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Falk, Abram L.Univ Chicago, IL USA; IBM TJ Watson Res Ctr, NY USA
(författare)
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Klimov, Paul V.Univ Chicago, IL USA
(författare)
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Whiteley, Samuel J.Univ Chicago, IL USA
(författare)
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Hruszkewycz, Stephan O.Argonne Natl Lab, IL USA
(författare)
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Holt, Martin V.Argonne Natl Lab, IL USA
(författare)
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Heremans, F. JosephArgonne Natl Lab, IL USA; Univ Chicago, IL USA
(författare)
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Nguyen, Son TienLinköpings universitet,Halvledarmaterial,Tekniska fakulteten(Swepub:liu)nguso90
(författare)
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Awschalom, David D.Argonne Natl Lab, IL USA; Univ Chicago, IL USA
(författare)
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Abrikosov, IgorLinköpings universitet,Teoretisk Fysik,Tekniska fakulteten,Natl Univ Sci and Technol MISIS, Russia(Swepub:liu)igoab43
(författare)
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Gali, AdamWigner Res Ctr Phys, Hungary; Budapest Univ Technol and Econ, Hungary
(författare)
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Linköpings universitetTeoretisk Fysik
(creator_code:org_t)
Sammanhörande titlar
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Ingår i:Nature Communications: NATURE PUBLISHING GROUP102041-1723
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Ivády, Viktor
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Davidsson, Joel
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Delegan, Nazar
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Falk, Abram L.
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Klimov, Paul V.
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Whiteley, Samuel ...
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visa fler...
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Hruszkewycz, Ste ...
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Holt, Martin V.
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Heremans, F. Jos ...
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Nguyen, Son Tien
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Awschalom, David ...
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Abrikosov, Igor
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Gali, Adam
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