Abstract
We discuss the spectrum and the eigenfunctions of a 2D Wannier-Stark system in both the tight-binding and single-band approximations. We show that the unfamiliar infinite-variable Bessel functions play a crucial role in these considerations. Furthermore, a closed formula for the eigenfunction for an arbitrary tight-binding ansatz in terms of an expansion in Wannier states is derived. Finally we give a closed form solution for the Wannier-Stark states in the scope of the single-band approximation.
Full Text 
Sign-in/Register to access full text options
Sign-in/Register to access full text options 
Published version (
Free)
Free) 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
