Energy transfer in photosynthesis is like a children's slide: it bends under the weight of one, reshaping the path for the next. That's what happens in a leaf: an excited molecule instantly reshapes the 'landscape' of its neighbors.
Physicists reproduce this effect using ions suspended in a vacuum trap. Their collective vibrations mimic energy jumps, and quantum properties allow precise control. This simulator makes processes lasting femtoseconds (tiny fractions of a second) visible for the first time — they previously evaded any instruments.
Three ions have already exchanged energy, creating an exciton analog — an excitation wave traveling through a cell. Hundreds of ions will unveil photosynthesis secrets and help create batteries that would make a leaf envious. The idea grew from the work of pioneers: David Wineland, Ignacio Cirac, and Peter Zoller. Now, instead of blurry pictures from spectroscopy (analysis of substance glow), we see a clear energy route in the carbon frameworks of biomolecules.
Excitons in photosynthetic bacteria transfer energy with nearly 100% efficiency — solar cell engineers can only dream of such.