Artificial Rydberg Atom

TL;DR

This paper investigates bound states of an electron around a positively charged nanoshell, revealing properties similar to Rydberg states, with energies decreasing as the nanoshell radius increases, and highlighting potential sensitivity to external perturbations.

Contribution

It introduces the concept of an artificial Rydberg atom formed by an electron bound to a nanoshell, analyzing its energy states and properties, which is a novel approach in nanoscale quantum systems.

Findings

Binding energies decrease with increasing nanoshell radius

Ground and excited states resemble highly excited Rydberg states

States exhibit high sensitivity to external perturbations

Abstract

We analyze bound states of an electron in the field of a positively charged nanoshell. We find that the binding and excitation energies of the system decrease when the radius of the nanoshell increases. We also show that the ground and the first excited states of this system have remarkably the same properties of the highly excited Rydberg states of a hydrogen-like atom i.e. a high sensitivity to the external perturbations and long radiative lifetimes.