Prof. Michael Wasielewski, Northwestern University, "Molecular Optical-Spin Interfaces for Quantum Information Applications"

Molecular electron spins have emerged as versatile quantum bits (qubits) with wide ranging applications in quantum sensing, coherent communications at the nanoscale, and computing. These applications take advantage of the ability of chemical synthesis to 1) create specific structures with atomic scale spatial control; 2) tailor the magnetic, optical, and electronic properties of the qubits; and 3) construct large-scale ordered arrays of qubits via crystal growth and/or self-assembly. To take full advantage of the tunability of molecular qubits, optical-spin interfaces use photons to create specific spin states as well as provide a means of photonic readout of spin information. We will report on molecular optical-spin interfaces based on photo-excitation of luminescent stable organic diradicals for quantum sensing and photo-driven teleportation of molecular spin states for nanoscale coherent information transfer.