Bloch spectrum

English

Noun

1. Template:Lb A concept relating to energy spectra. Let H be the one-dimensional Schrödinger equation operator $H=-\frac{d^2}{d{x}^2}+U_{\alpha },$ where U_α is a periodic function of period α. The Bloch spectrum of H is the set of values E for which all the solutions of (H − E)φ = 0 are bounded on the whole real axis.