Chirality-Induced Spin Selectivity: An Enabling Technology for Quantum Applications

Molecular spins are promising building blocks of future quantum technologiesthanks to the unparalleled flexibility provided by chemistry, which allows thedesign of complex structures targeted for specific applications. However, theirweak interaction with external stimuli makes it difficult to access their state atthe single-molecule level, a fundamental tool for their use, for example, in quantum computing and sensing. Here, an innovative solution exploiting theinterplay between chirality and magnetism using the chirality-induced spinselectivity effect on electron transfer processes is foreseen. It is envisioned touse a spin-to-charge conversion mechanism that can be realized byconnecting a molecular spin qubit to a dyad where an electron donor and anelectron acceptor are linked by a chiral bridge. By numerical simulationsbased on realistic parameters, it is shown that the chirality-induced spin selectivity effect could enable initialization, manipulation, and single-spinreadout of molecular qubits and qudits even at relatively high temperatures.