Copyright © 2005 Hindawi Publishing Corporation. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

We explicitly compute the spectrum and eigenfunctions of the magnetic Schrödinger operator H(A→,V)=(i∇+A→)2+V in L2(ℝ2), with Aharonov-Bohm vector potential, A→(x1,x2)=α(−x2,x1)/|x|2, and either quadratic or Coulomb scalar potential V. We also determine sharp constants in the CLR inequality, both dependent on the fractional part of α and both greater than unity. In the case of quadratic potential, it turns out that the LT inequality holds for all γ≥1 with the classical constant, as expected from the nonmagnetic system (harmonic oscillator).