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A novel light-spin interface with europium(III) molecule advances development of quantum computers

April 12, 2021

A novel light-spin interface with europium(III) molecule advances development of quantum computers

The molecule, which belongs to the rare earth metals, is designed to exhibit luminescence, i.e., a europium(III)-centered sensitized emission, when excited by ultraviolet light-absorbing ligands surrounding the center. Optical spin-state polarization in a binuclear europium complex towards molecule-based coherent light-spin interfaces, Nature Communications (2021). Credit: S. Kuppusamy, KIT Light can be used to operate quantum information processing systems, e.g. quantum computers, quickly and efficiently. However, the superposition states of a qubit are fragile and are disturbed by fluctuations in the environment, which leads to decoherence, i.e. shortening of the coherence lifetime.” Optical spin-state polarization in a binuclear europium complex towards molecule-based coherent light-spin interfaces,(2021). Researchers at Karlsruhe Institute of Technology (KIT) and Chimie ParisTech/CNRS have now significantly advanced the development of molecule-based materials suitable for use as light-addressable fundamental quantum units. Spectral hole burning—special experiments with lasers—detect the polarization of the nuclear spin levels, indicating the generation of a efficient light-nuclear spin interface.

Article from Phys.org.