Vanadyl spin qubit 2D arrays and their integration on superconducting resonators
Vanadyl systems have been shown to possess superior quantum coherence among molecular spin qubits. Meanwhile two-dimensional (2D) networks of spin qubit nodes could provide a means to achieve the control of qubit localization and orientation required for implementation of molecular spin qubits in hy...
| Autores: | , , , , , , , , |
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| Tipo de recurso: | artículo |
| Estado: | Versión aceptada para publicación |
| Fecha de publicación: | 2020 |
| País: | España |
| Institución: | Consejo Superior de Investigaciones Científicas (CSIC) |
| Repositorio: | DIGITAL.CSIC. Repositorio Institucional del CSIC |
| OAI Identifier: | oai:digital.csic.es:10261/219209 |
| Acceso en línea: | http://hdl.handle.net/10261/219209 |
| Access Level: | acceso abierto |
| Sumario: | Vanadyl systems have been shown to possess superior quantum coherence among molecular spin qubits. Meanwhile two-dimensional (2D) networks of spin qubit nodes could provide a means to achieve the control of qubit localization and orientation required for implementation of molecular spin qubits in hybrid solid-state devices. Here, the 2D metal–organic framework [{VO(TCPP)}Zn2(H2O)2]∞ is reported and its vanadyl porphyrin node is shown to exhibit superior spin dynamics and to enable coherent spin manipulations, making it a valid spin qubit candidate. Nanodomains of the MOF 2D coordination planes are efficiently formed at the air–water interface, first under Langmuir–Schaefer conditions, allowing mono- and multiple layer deposits to be transferred to a variety of substrates. Similar nanodomains are then successfully formed in situ on the surface of Nb superconducting coplanar resonators. Transmission measurements with a resonator with a 14 μm-wide constriction allow to estimate that the single spin-photon coupling G1 of the vanadyl spins in the nanodomains is close to being optimal, at ca. 0.5 Hz. Altogether, these results provide the basis for developing a viable hybrid quantum computing architecture. |
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