Energy levels of finite volume two-particle scattering states with Bloch's boundary conditions
Nazario Tantalo
Abstract
I will discuss the quantization
condition of a two--particle state in a finite volume satisfying Bloch's
boundary conditions (or flavor twisted b.c.).
I will derive a formula connecting the energy levels of the two particle states
with their scattering phases. I will discuss also the case of a neutral two-pion
system and the corrections induced on the quantization condition by the breaking
of the isospin symmetry.