Exact treatment of rotation-induced modifications in two-dimensional quantum rings

TL;DR

This paper analytically and numerically studies how rotation affects the electronic properties of two-dimensional quantum rings, revealing significant impacts on Fermi energy, magnetization, and persistent current, with implications for device control.

Contribution

It provides the first analytical expressions for energy levels in rotating quantum rings and demonstrates how rotation can be used as a control parameter in mesoscopic devices.

Findings

Rotation significantly alters Fermi energy, magnetization, and persistent current.

Analytical expressions for energy levels under rotation are derived.

Rotation can serve as a control parameter in quantum device design.

Abstract

We investigate the influence of rotation on the Fermi energy, magnetization, and persistent current in two-dimensional quantum rings. Using the Tan-Inkson confinement potential and incorporating rotational effects through a non-inertial coupling, we derive analytical expressions for the energy levels and examine the modifications induced by rotation. We then numerically explore how variations in angular velocity affect the Fermi energy, magnetization, and persistent current. Our results show that rotation has a significant impact on these physical properties, underscoring the importance of considering rotational effects in quantum ring systems. This suggests that rotation could serve as a control parameter in the development of new mesoscopic devices, without the need for additional fields or geometric modifications.