High- fi delity non-adiabatic cutting and stitching of a spin chain via local control
dc.contributor.author | Pyshkin, P. V. | |
dc.contributor.author | Sherman, Evgeny | |
dc.contributor.author | You, J. Q. | |
dc.contributor.author | Wu, Lianao | |
dc.date.accessioned | 2019-01-11T12:55:21Z | |
dc.date.available | 2019-01-11T12:55:21Z | |
dc.date.issued | 2018-10-18 | |
dc.identifier.citation | New Journal of Physics 20 : (2018) // Article ID 105006 | es_ES |
dc.identifier.issn | 1367-2630 | |
dc.identifier.uri | http://hdl.handle.net/10810/30755 | |
dc.description.abstract | We propose and analyze, focusing on non-adiabatic effects, a technique of manipulating quantum spin systems based on local 'cutting' and 'stitching' of the Heisenberg exchange coupling between the spins. This first operation is cutting of a bond separating a single spin from a linear chain, or of two neighboring bonds for a ring-shaped array of spins. We show that the disconnected spin can be in the ground state with a high-fidelity even after a non-adiabatic process. Next, we consider inverse operation of stitching these bonds to increase the system size. We show that the optimal control algorithm can be found by using common numerical procedures with a simple two-parametric control function able to produce a high-fidelity cutting and stitching. These results can be applied for manipulating ensembles of quantum dots, considered as prospective elements for quantum information technologies, and for design of machines based on quantum thermodynamics. | es_ES |
dc.description.sponsorship | This work was supported by the National Research, Development and Innovation Office of Hungary (Project Nos. K124351 and 2017-1.2.1-NKP-2017-00001), Basque Government (Grant No. IT472-10), the Spanish Ministry of Economy, Industry, and Competitiveness (MINECO) and the European Regional Development Fund FEDER Grant No. FIS2015-67161-P (MINECO/FEDER, UE), and the NSFC No. 11774022. Editorial | es_ES |
dc.language.iso | eng | es_ES |
dc.publisher | IOP Publishing | es_ES |
dc.relation | info:eu-repo/grantAgreement/MINECO/FIS2015-67161-P | es_ES |
dc.rights | info:eu-repo/semantics/openAccess | es_ES |
dc.rights.uri | http://creativecommons.org/licenses/by/3.0/es/ | * |
dc.subject | quantum control | es_ES |
dc.subject | adiabatic | es_ES |
dc.subject | shortcuts | es_ES |
dc.subject | spin chain | es_ES |
dc.subject | quantum computation | es_ES |
dc.subject | adiabaticity | es_ES |
dc.subject | dots | es_ES |
dc.title | High- fi delity non-adiabatic cutting and stitching of a spin chain via local control | es_ES |
dc.type | info:eu-repo/semantics/article | es_ES |
dc.rights.holder | Original content from this work may be used under the terms of the Creative Commons Attribution 3.0 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 | http://iopscience.iop.org/article/10.1088/1367-2630/aae4ac/meta | es_ES |
dc.identifier.doi | 10.1088/1367-2630/aae4ac | |
dc.departamentoes | Física teórica e historia de la ciencia | es_ES |
dc.departamentoes | Química física | es_ES |
dc.departamentoeu | Fisika teorikoa eta zientziaren historia | es_ES |
dc.departamentoeu | Kimika fisikoa | es_ES |
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Except where otherwise noted, this item's license is described as Original content from this work may be used under the terms of the Creative Commons Attribution 3.0 licence. Any further distribution of this work must maintain attribution to the author(s) and the title of the work, journal citation and DOI.