Quantum Study Explains Electron-Phonon Energy Transfer By 1/137 Factor

Quantum Study Explains Electron-Phonon Energy Transfer By 1/137 Factor

A new study from Tohoku University reveals that the strength of interactions between electrons and crystal vibrations, known as phonons, is quantized and universally linked to the fine-structure constant (approximately 1/137). This discovery demonstrates a fundamental connection between electromagnetic forces and the microscopic interactions within crystals, offering insights for materials design.

Listening to the ‘whispers’ of electrons and crystals: A quantum discovery

A researcher at the Department of Physics at Tohoku University has uncovered a surprising quantum phenomenon hidden inside ordinary crystals: the strength of interactions between electrons and lattice vibrations – known as phonons – is not continuous, but quantized. Even more remarkably, this strength is universally linked to one of physics’ most iconic numbers: the fine-structure constant. What makes this dimensionless number (α ≈ 1/137) so ico…