"A single acoustic wave can carry electrons from different quantum nodes at the same time," Bauerle said, adding that they achieved 99.4 percent transmission efficiency during their experiments.

"In the last 10 years, surface acoustic waves have emerged as a good resource for quantum applications because the phonon, or individual particle of sound, couples very well to different systems ...

Electrons surfing on a sound wave as a platform for quantum optics with flying electrons. Nature , 2011; 477 (7365): 435 DOI: 10.1038/nature10416 Cite This Page : ...

image: A charge sensor measuring the cost of electrons surfing on the spin wave (green wavy lines) (Credit: Yacoby Lab/ Harvard SEAS) view more . Credit: (Credit: Yacoby Lab/ Harvard SEAS) ...

However, quantum mechanics suggests that, on the scale of the Planck length (1.6×10-35 meters), quantum effects should kick in. Theories disagree on exactly what those effects might be though.

Dec 14, 2021: Surfing the spin wave in graphene (Nanowerk News) Spin waves, a change in electron spin that propagates through a material, could fundamentally change how devices store and carry ...

What bothers some people about this interpretation is the random, abrupt change in the wave function, which violates the Schrödinger equation, the very heart of quantum mechanics.