Nano–electron volt Fourier-limited transition of a single surface-adsorbed molecule

Scientists observed a transition of a single molecule adsorbed on a surface with energy in the nano-electron volt range, representing a Fourier-limited phenomenon. This study was published in the journal Science in June 2026 in volume 392, issue 6805 on pages 1384-1389. The research focuses on specific energy transitions of molecules on surfaces with unprecedented precision. The nano-electron volt energy scale represents extremely small energy differences that were previously difficult to measure. A Fourier-limited transition means that the transition achieves the theoretical precision limit determined by Fourier principles. This work contributes to a deeper understanding of molecular processes on surfaces.