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...

Full description

Saved in:
Bibliographic Details
Published in:Materials horizons 2020-03, Vol.7 (3), p.885-897
Main Authors: Urtizberea, Ainhoa, Natividad, Eva, Alonso, Pablo J, Pérez-Martínez, Laura, Andrés, Miguel A, Gascón, Ignacio, Gimeno, Ignacio, Luis, Fernando, Roubeau, Olivier
Format: Article
Language:English
Subjects:
Coherence
Coupling (molecular)
Image transmission
Metal-organic frameworks
Quantum computing
Quantum phenomena
Qubits (quantum computing)
Resonators
Solid state devices
Spin dynamics
Substrates
Superconductivity
Vanadyl porphyrins
X ray photoelectron spectroscopy
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary: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)}Zn 2 (H 2 O) 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 G 1 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. 2D vanadyl porphyrin layers are shown to possess superior spin coherence and to purvey an optimal interface with superconducting circuits.
ISSN:2051-6347
2051-6355
DOI:10.1039/c9mh01594a