NanoSPINEC - Nanoscale spin entanglement and chemistry

Using nanophotonic cavities, we will achieve the first room-temperature measurements of spin states at the single-molecule level, leveraging them to track the formation and decay of quantum correlations in exciton singlet fission (SF) and to establish the first chemical Bell inequalities through optically-detected magnetic resonance (ODMR) of triplet states.

This project leverages our recent advances in nanophotonics to control and probe quantum spin states at room temperature and the single-molecule level. We aim to demonstrate the first room-temperature ODMR of single organic molecules in nanocavities and use photoluminescence statistics to study entanglement in singlet fission and triplet-triplet annihilation. Our approach also provides a concrete route towards a Bell inequalities test in molecular systems. If we succeed, our work will provide the first violation of such inequalities in a chemical system, a crucial milestone in establishing molecular qubits as viable quantum information science (QIS) platforms. Beyond QIS, our project is timely and transformative as it advances scalable, self-assembled single-molecule ODMR, enabling new sensing methods and insights into molecular spin dynamics with broad implications for spectroscopy and optoelectronics