Non-relativistic Quantum Mechanics versus Quantum Field Theories

Abstract

We briefly review the derivation of a non-relativistic quantum mechanics description of a weakly bound non-relativistic system from the underlying quantum field theory. We highlight the main techniques used.

Comments: 4 pages, 6 figures. Invited talk given at 42nd Rencontres de Moriond on QCD and High-Energy Hadronic Interactions, La Thuile, March 2007