Ultrafast entanglement switching and singlet-triplet transitions control via structured terahertz pulses
dc.contributor.author | Wätzel, Jonas | |
dc.contributor.author | Berakdar, Jamal | |
dc.contributor.author | Sherman, Evgeny | |
dc.date.accessioned | 2022-05-23T08:09:17Z | |
dc.date.available | 2022-05-23T08:09:17Z | |
dc.date.issued | 2022 | |
dc.identifier.citation | New Journal of Physics 24 : (2022) // Article ID 043016 | es_ES |
dc.identifier.issn | 1367-2630 | |
dc.identifier.uri | http://hdl.handle.net/10810/56663 | |
dc.description.abstract | [EN] Terahertz (THz) vector beams with spatially textured polarization are proposed to steer the spin and spatial distributions of two interacting electrons in a quantum dot. We study theoretically the spatiotemporal evolution of the spin and the charge-current densities and quantify the behavior of entanglement by calculating the concurrence. Both aspects are shown to be controllable efficiently and on the picosecond (ps) time scale by the parameters of the driving fields. Analyzing two different materials, GaAs and InGaAs, with different electron g-factors, we study the relationship between the g-factor and type of spin-orbit coupling required to produce efficient interlevel transitions. The results are useful for applications of quantum dots as basic nanoscale hardware elements in quantum information technology and for producing swiftly the appropriate spin and charge currents on demand. | es_ES |
dc.description.sponsorship | ES is supported by the Grant IT986-16 of the Basque Country Government and by the Grant PGC2018-101355-B-I00 funded by MCIN/AEI/10.13039/501100011033 and by 'ERDF A way of making Europe'. JW and JB acknowledge support by the Deutsche Forschungsgemeinschaft (DFG) under SPP1840 and WA 4352/2-1. | es_ES |
dc.language.iso | eng | es_ES |
dc.publisher | IOP | es_ES |
dc.relation | info:eu-repo/grantAgreement/MICIU/PGC2018-101355-B-I00 | es_ES |
dc.rights | info:eu-repo/semantics/openAccess | es_ES |
dc.rights.uri | http://creativecommons.org/licenses/by/3.0/es/ | * |
dc.subject | vector beams | es_ES |
dc.subject | spin manipulation | es_ES |
dc.subject | quantum dot | es_ES |
dc.title | Ultrafast entanglement switching and singlet-triplet transitions control via structured terahertz pulses | es_ES |
dc.type | info:eu-repo/semantics/article | es_ES |
dc.rights.holder | © 2022 The Author(s). Published by IOP Publishing Ltd on behalf of the Institute of Physics and Deutsche Physikalische Gesellschaft. Original content from this work may be used under the terms of the Creative Commons Attribution 4.0 licence. Any further distribution of this work must maintain attribution to the author(s) and the title of the work, journal citation and DOI. | es_ES |
dc.rights.holder | Atribución 3.0 España | * |
dc.relation.publisherversion | https://iopscience.iop.org/article/10.1088/1367-2630/ac608a | es_ES |
dc.identifier.doi | 10.1088/1367-2630/ac608a | |
dc.departamentoes | Química física | es_ES |
dc.departamentoeu | Kimika fisikoa | es_ES |
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