129859 20250307094029.0 doi 10.1103/PhysRevApplied.20.044070 sideral 136169 ART-2023-136169 eng Gimeno, Ignacio (orcid)0000-0002-6184-3920 Optimal coupling of Ho W10 molecular magnets to superconducting circuits near spin clock transitions 2023 Access copy available to the general public Unrestricted A central goal in quantum technologies is to maximize GT2, where G stands for the coupling of a qubit to control and readout signals and T2 is the qubit’s coherence time. This is challenging, as increasing G (e.g., by coupling the qubit more strongly to external stimuli) often leads to deleterious effects on T2. Here, we study the coupling of pure and magnetically diluted crystals of Ho W10 magnetic clusters to microwave superconducting coplanar waveguides. Absorption lines give a broadband picture of the magnetic energy level scheme and, in particular, confirm the existence of level anticrossings at equidistant magnetic fields determined by the combination of crystal field and hyperfine interactions. Such “spin clock transitions” are known to shield the electronic spins against magnetic field fluctuations. The analysis of the microwave transmission shows that the spin-photon coupling also becomes maximum at these transitions. The results show that engineering spin-clock states of molecular systems offers a promising strategy to combine sizable spin-photon interactions with a sufficient isolation from unwanted magnetic noise sources. info:eu-repo/grantAgreement/ES/DGA/E09-17R-Q-MAD info:eu-repo/grantAgreement/ES/DGA/PT1001 info:eu-repo/grantAgreement/EC/HORIZON EUROPE/101064707/EU/Spin-based quantum memory coupled to superconducting qubits in a Hybrid Quantum Architecture/HyQuArch info:eu-repo/grantAgreement/EC/H2020/ 788222/EU/Molecule-induced control over 2D Materials/Mol-2D This project has received funding from the European Union’s Horizon 2020 research and innovation program under grant agreement No H2020 788222-Mol-2D info:eu-repo/grantAgreement/EC/H2020/647301/EU/A Chemical Approach to Molecular Spin Qubits: Decoherence and Organisation of Rare Earth Single Ion Magnets/DECRESIM This project has received funding from the European Union’s Horizon 2020 research and innovation program under grant agreement No H2020 647301-DECRESIM info:eu-repo/grantAgreement/EC/H2020/862893/EU/Molecular spin qudits offering new hope for quantum computing/FATMOLS This project has received funding from the European Union’s Horizon 2020 research and innovation program under grant agreement No H2020 862893-FATMOLS info:eu-repo/grantAgreement/ES/MICINN-AEI/PRTR-C17.I1 info:eu-repo/grantAgreement/ES/MICINN/CEX2019-000919-M info:eu-repo/grantAgreement/ES/MICINN/PID2019-105552RB-C41 info:eu-repo/grantAgreement/ES/MICINN/PID2019-105552RB-C44 info:eu-repo/grantAgreement/ES/MICINN/P2018-NMT-4291 info:eu-repo/grantAgreement/ES/MICINN/RTI2018-096075-A-C21 info:eu-repo/grantAgreement/ES/MICINN/TEC2SPACE-LM info:eu-repo/grantAgreement/EUR/MICINN/TED2021-131447B-C21 info:eu-repo/grantAgreement/EUR/MICINN/TED2021-131447B-C22 info:eu-repo/semantics/openAccess All rights reserved http://www.europeana.eu/rights/rr-f/ 3.8 2023 PHYSICS, APPLIED 54 / 179 = 0.302 2023 Q2 T1 1.335 2023 Physics and Astronomy (miscellaneous) 2023 Q1 7.8 2023 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Rollano, Víctor Zueco, David (orcid)0000-0003-4478-1948 Duan, Yan de Ory, Marina C. Gomez, Alicia Gaita-Ariño, Alejandro Sánchez-Azqueta, Carlos Universidad de Zaragoza (orcid)0000-0002-8236-825X Astner, Thomas Granados, Daniel Hill, Stephen Majer, Johannes Coronado, Eugenio Luis, Fernando (orcid)0000-0001-6284-0521 2002 385 Universidad de Zaragoza Dpto. Física Aplicada Área Física Aplicada 20 (2023), 044070 [13 pp.] Phys. rev. appl. Physical Review Applied 2331-7019 6471798 http://zaguan.unizar.es/record/129859/files/texto_completo.pdf Versión publicada 2625094 http://zaguan.unizar.es/record/129859/files/texto_completo.jpg?subformat=icon icon Versión publicada oai:zaguan.unizar.es:129859 articulos driver 2025-03-07-09:38:52 ARTICLE