27 November – Mario Kummer: Fourier Quasicrystals
Quasicrystals were discovered in the 1980s and have led to a paradigm change in crystallography. Their existence shows that order can exist without regular repetition. They scatter X-rays into patterns with sharp peaks, much like ordinary crystals. Yet the mathematics behind this picture holds a surprise: in many models, countless faint peaks fill the gaps and remain hidden only because instrument...







