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, precluding the study of single-qubit properties and impeding scaling and integration with existing and emerging quantum technologies. In this project, we will extend scanning tunneling microscope-based methods for single-atom coherence measurements to single molecular qubits for the first time through a collaborative international research program. Atomic resolution STM imaging and spectroscopy will be used to characterize the adsorption and encapsulation of molecular qubits in graphene/boron nitride heterostructures. These measurements will then be correlated with single-molecule spin resonance and spin relaxation measurements. In this way, we will 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
- DoD Grant Award
- Publication Date
- Aug 11, 2021
- Source ID
- FA23862014052
Entities
People
- Yujeong Bae
Organizations
- Air Force Office of Scientific Research
- Ewha Womans University
- United States Air Force