We are living in the second quantum revolution, at time where scientists are harnessing our nascent control of quantum properties towards the broad range of fields encompassed by quantum information science (QIS). By harnessing the atomistic control inherent to synthetic chemistry, we can create quantum bits or qubits which are tuned for specific applications and environments. Designer qubits will enable transformative technologies including fantastical-sounding notions such as the quantum internet, quantum computing, and quantum metrology. The unique combination of atomic-scale tunability, reproducibility, and chemical specificity make paramagnetic molecules a paradigm-shifting category of materials. This capability has the potential to be transformative for developing a bespoke quantum ecosystem, as, for example, the requirements for a node within a quantum communications network are distinct and potentially orthogonal to those for a quantum sensor.<br/><br/> In one specific example of this approach, we imbued molecular qubits with the same read-out approach as defect-based systems. Our team created an inverse design problem whereby we mimicked the electronic structure with an orthogonal physical structure. Using transition metal chemistry, we designed the ground state, excited states and dynamics based on straightforward ligand field analysis. By coupling optical read-out with spatial precision, we seamlessly integrated a new class of materials with existing read-out technology.

Chemistry for the second quantum revolution

ACS Spring 2022

The official archive and repository for all ACS Meetings & Expositions abstracts and select posters or presentations.