Description

Day: 2009/05/20

Place: Sala de Seminarios del Departamento de Física Teórica e Historia de la Ciencia
Time: 12h.
Title: Quasi-hermitian Hamiltonians and Scattering
Abstract
Since the seminal paper of Bender and Boettcher much effort has been devoted to PT-symmetric non-hermitian hamiltonians with real eigenvalues. They have been characterized as quasi-hermitian, and that has led to claims that they are equivalent to hermitian hamiltonians. By examining these claims in the light of 1d scattering theory we can refine our understanding of this equivalence.