Data transmission by quantum matter wave modulation

Abstract Classical communication schemes exploiting wave modulation are the basis of our information era. Quantum techniques with photons enable future secure data transfer in dawn decoding quantum computers. Here we demonstrate that also matter waves can be applied for transfer. Our technique allows transmission a message by coherent electrons biprism interferometer. The is encoded superposition state Wien filter introducing longitudinal shift between separated packets. receiver delay line detector performing dynamic contrast analysis fringe pattern. method relies on Aharonov–Bohm effect but does not phase. It demonstrated an eavesdropping attack will terminate disturbing and decoherence. Furthermore, discuss security limitations scheme due to multi-particle aspect propose implementation key distribution protocol prevent active eavesdropping.