I will give a talk entitled “The measurement problem in non-relativistic and relativistic quantum theories” at the University of Bern’s Institute for Theoretical Physics on Friday, 14 September 2012.
The measurement problem (MP) in (non-relativistic) quantum mechanics can be understood as the inconsistency of the following three theses: (i) the wave function completely describes the quantum state, (ii) the evolution of the wave function is completely determined by its Schrödinger evolution, and (iii) measurements have determinate outcomes. This characterization lends itself naturally to categorizing solutions to the MP denying one of the theses as hidden-variable theories, collapse theories, and many-worlds theories, respectively. All of these solutions of the MP face their own difficulties. This talk will explore, in particular, the issues arising in attempts to transpose them into relativistic quantum (field) theories, where the MP still arises (as will be argued).