High cooperativity coupling to nuclear spins on a circuit QED architecture

• URL: http://arxiv.org/abs/2203.00965v1
• Date: Wed, 2 Mar 2022 09:18:54 GMT
• Title: High cooperativity coupling to nuclear spins on a circuit QED architecture
• Authors: V. Rollano (1 and 2), M. C. de Ory (3), C. D. Buch (4), M. Rub\'in-Osanz (1 and 2), D. Zueco (1 and 2), C. S\'anchez-Azqueta (5), A. Chiesa (6 and 7 and 8), D. Granados (9), S. Carretta (6 and 7 and 8), A. Gomez (3), S. Piligkos (4) and F. Luis (1 and 2) ((1) INMA CSIC and Universidad de Zaragoza Spain, (2) Departamento de F\'isica de la Materia Condensada Universidad de Zaragoza Spain, (3) Centro de Astrobiolog\'ia CSIC and INTA Torrej\'on de Ardoz Spain, (4) Department of Chemistry University of Copenhagen Denmark, (5) Departamento de F\'isica Aplicada Universidad de Zaragoza Spain, (6) Universit\`a di Parma Dipartamento di Scienze Matematiche Fisiche e Informatiche Parma Italy, (7) UdR Parma INSTM Parma Italy, (8) INFN Sezione di Milano Bicocca gruppo collegato di Parma Parma Italy, (9) IMDEA Nanociencia Cantoblanco Madrid Spain)
• Abstract summary: Nuclear spins are candidates to encode qubits or qudits due to their isolation from magnetic noise and potentially long coherence times. We study the coupling of $173$Yb(III) nuclear spin states in an [Yb(trensal)] molecule to superconducting cavities.
• Score: 0.0
• License: http://creativecommons.org/licenses/by-nc-nd/4.0/
• Abstract: Nuclear spins are candidates to encode qubits or qudits due to their isolation from magnetic noise and potentially long coherence times. However, their weak coupling to external stimuli makes them hard to integrate into circuit-QED architectures, the leading technology for solid-state quantum processors. Here, we study the coupling of $^{173}$Yb(III) nuclear spin states in an [Yb(trensal)] molecule to superconducting cavities. Experiments have been performed on magnetically diluted single crystals placed on the inductors of lumped-element $LC$ superconducting resonators with characteristic frequencies spanning the range of nuclear and electronic spin transitions. We achieve a high cooperative coupling to all electronic and most nuclear [$^{173}$Yb(trensal)] spin transitions. This result is a big leap towards the implementation of qudit protocols with molecular spins using a hybrid architecture.

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