Events in Physics

Observation of Aharonov-Bohm effect with quantum tunneling

Quantum tunneling is one such phenomenon that is essential for a number of devices that are now taken for granted. However, our understanding of quantum tunneling dynamics is far from complete, and there are still a number of theoretical and experimental challenges. The dynamics of the quantum tunneling process can be investigated if we can create a large tunneling region. We have achieved this using a linear Paul trap and a quantum tunneling rotor, which has resulted in the successful observation of the Aharonov–Bohm effect in tunneling particles. Also, this result shows that the spatially separated phonon can be interfered. This work is collaborated with Atshushi Noguchi, Kenji Toyoda, and Shinji Urabe.

Nature Communications 5, 3868 (2014)