Lumped element superconducting resonators for electrical control and read-out of molecular spin qubits
ORAL
Abstract
Paramagnetic molecular spin systems strongly coupled to superconducting resonators are promising building blocks for hybrid quantum processors. However, the control of specific operations remains a challenge as the spin coherence times are not yet sufficiently long as compared with the coupling rate. Our approach is to electrically control and read-out the spin state of a high-spin (S = 5/2) paramagnetic manganese(II) molecules embedded in its polar piezoelectric diamagnetic Zn(II) host lattice. We have developed lumped-element resonators (LERs) that, through the resonant microwave fields, modify the local ion coordination modulating the magnetic anisotropy that determines the spin qubit Hamiltonian and transition rates. The use of superconducting microwave resonators implies low losses, high-quality factors and multiplexability which are crucial for this application permitting the simultaneous readout of several qubits. M. C. de Ory and S. Roca contributed equally to this work.
*We acknowledge support from EU (FETOPEN-RIA-2019-01 862893, QUANTERA SUMO), Spanish MCIU/AEI/FEDER (PID2019-105552RB-41, RTI-2018-096075-B-C21, PCI2018-093116 and PID2019-105552RB-44), ONR-Global (DEFROST N62909-19-1-2053), French ANR project SMolMagIQ (ANR-20-CE29-0010) and CSIC Research Platform PTI-001.
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Presenters
Marina C de Ory
Spanish National Research Council (CSIC) / Spanish National Institute of Aerospace Technology (INTA)
Centro de Astrobiología CSIC-INTA, 28850 Torrejón de Ardoz, Spain
Spanish National Research Council (CSIC)
Authors
Marina C de Ory
Spanish National Research Council (CSIC) / Spanish National Institute of Aerospace Technology (INTA)
Centro de Astrobiología CSIC-INTA, 28850 Torrejón de Ardoz, Spain
Spanish National Research Council (CSIC)
Sebastián Roca
Instituto de Nanociencia y Materiales de Aragón (INMA), CSIC-Universidad de Zaragoza, C/ Pedro Cerbuna 12, 50009 Zaragoza, Spain.
Marcos Rubin-Osanz
Instituto de Nanociencia y Materiales de Aragón (INMA), CSIC-Universidad de Zaragoza, C/ Pedro Cerbuna 12, 50009 Zaragoza, Spain.
Consejo Superior de Investigaciones Cientificas (CSIC) / Universidad de Zaragoza / INMA
Spanish National Research Council (CSIC)
Victor Rollano
Spanish National Research Council (CSIC) / University of Zaragoza
Instituto de Nanociencia y Materiales de Aragón (INMA), CSIC-Universidad de Zaragoza, C/ Pedro Cerbuna 12, 50009 Zaragoza, Spain.
María Teresa Magaz
Centro de Astrobiología CSIC-INTA, 28850 Torrejón de Ardoz, Spain