Optical control of nuclear spins in molecules points to new paths for quantum technologies
Why it matters: This research is a crucial step towards optically networked quantum processing systems and scalable quantum computers.
- KIT researchers optically initialized, controlled, and read out nuclear spin states in a molecular material for the first time, leveraging europium ions' narrow optical transitions.
- Nuclear spins are highlighted as particularly stable quantum information carriers due to their weak interaction with the environment, achieving quantum coherence with a lifetime of up to two milliseconds.
- Professor David Hunger emphasizes that molecular materials offer a promising platform for future quantum components, enabling stable and dense qubit registers by addressing nuclear spins without electron spin interference.
- Professor Mario Ruben's group at KIT synthesized the molecular crystals, tailoring them for atomically precise qubit registers and investigating their suitability for quantum platforms.
Researchers at the Karlsruhe Institute of Technology (KIT) have achieved a breakthrough in quantum physics by optically controlling nuclear spin states in a molecular material, demonstrating their potential as stable quantum information carriers. This advancement, published in Nature Materials, opens new avenues for developing scalable quantum computers and high-resolution NMR methods through chemically customizable molecular systems.
