Spin Resonance Studies of Single Molecule Qubits
Abstract
Quantum coherence is an emerging degree of freedom of interest for novel computation and sensing applications. Both electron and nuclear spin as quantum bits (qubits) have been demonstrated in molecular systems, with performance comparable to other leading spin qubit systems but with the added potential of chemical tuning to tailor the coherence properties for particular applications. However, the field has thus far relied on measurements of large ensembles in solution or in powder forms, precluding the study of single-qubit properties and impeding scaling and integration with existing and emerging quantum technologies. In this project, we aimed at extending scanning tunneling microscope-based methods for single-atom coherence measurements to single molecular qubits through a collaborative international research program. Using atomic resolution STM imaging and spectroscopy, we have characterized the adsorption and encapsulation of molecular qubits on the isostructural molecular films. These measurements can then be correlated with single-molecule spin resonance and spin relaxation measurements. In this way, we elucidate how the local environment impacts molecular coherence properties with unprecedented resolution and control. This is an initial step toward integration of molecular qubits into solid-state device architectures for scalable applications.
Document Details
- Document Type
- Technical Report
- Publication Date
- Jan 02, 2024
- Accession Number
- AD1228659
Entities
People
- Christoph Wolf
- Jay F. Gupta
- Yujeong Bae
Organizations
- Ewha Womans University
- Ohio State University