Our first JPhysB Image of the Week for 2017 comes from a recently published article by B Zygleman on The molecular Aharonov-Bohm effect redux. The Aharonov-Bohm effect is important for understanding the behaviour of various exotic forms of quantum matter. In their paper, Zygleman explains:
The Aharonov–Bohm (AB) effect…describes the behavior of a charged particle in the presence of a gauge vector potential that does not impress a Lorentz force on the particle, but nevertheless exerts a profound influence on its scattering properties.
In this paper, Zygleman considers the molecular AB effect, a similar effect for polyatomic systems which possess “conical intersections” between potential energy surfaces. Through their model they show the signatures of AB-like scattering in these structures.
To show this they model packet amplitudes incident on a conical intersection. The images above are density plots of the imaginary part of the packet amplitude at a particular time. The initial wave packet is incident at the top of each panel, and the conical intersection at the centre. Each row shows a different energy, and the columns are for two different Hamiltonians.
Read more: The molecular Aharonov-Bohm effect redux
This work is licensed under a Creative Commons Attribution 3.0 Unported License. Image taken and front image adapted from B Zygelman 2017 J. Phys. B: At. Mol. Opt. Phys. 50 02510, © IOP Publishing, All Rights Reserved.