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Decoherence from dipolar interspin interactions in molecular spin qubits

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Decoherence from dipolar interspin interactions in molecular spin qubits

dc.contributor.author	Escalera Moreno, Luis
dc.contributor.author	Gaita Ariño, Alejandro
dc.contributor.author	Coronado Miralles, Eugenio
dc.date.accessioned	2020-04-06T09:40:16Z
dc.date.available	2020-04-06T09:40:16Z
dc.date.issued	2019
dc.identifier.uri	https://hdl.handle.net/10550/73783
dc.description.abstract	The realization of spin-based logical gates crucially depends on magnetically coupled spin qubits. Thus, understanding decoherence when spin qubits are in close proximity will become a roadblock to overcome. Herein, we propose a method free of fitting parameters to evaluate the qubit phase memory time Tm in samples with high electron spin concentrations. The method is based on a model aimed to estimate magnetic nuclear decoherence [P. C. E. Stamp and I. S. Tupitsyn, Phys. Rev. B 69, 014401 (2004)]. It is applied to a ground-spin J=8 magnetic molecule 1 displaying atomic clock transitions, namely [HoIII(W5O18)2]9−, which remarkably increase Tm at unusually high electron-spin concentrations. Our approach unveils the causes that limit the coherence reached at the clock transitions in challenging systems such as 1, where recent models fail.
dc.language.iso	eng
dc.relation.ispartof	Physical Review B, 2019, vol. 100, p. 064405-1-064405-9
dc.source	Escalera Moreno, Luis Gaita Ariño, Alejandro Coronado Miralles, Eugenio 2019 Decoherence from dipolar interspin interactions in molecular spin qubits Physical Review B 100 064405-1 064405-9
dc.subject	Quàntums, Teoria dels
dc.title	Decoherence from dipolar interspin interactions in molecular spin qubits
dc.type	journal article	es_ES
dc.date.updated	2020-04-06T09:40:16Z
dc.identifier.doi	https://doi.org/10.1103/PhysRevB.100.064405
dc.identifier.idgrec	134504
dc.rights.accessRights	open access	es_ES