03.12.2018 16:15 Dr. Dustin Lazarovici:
Yet another „proof“ that something is wrong with Bohmian mechanicsB 133 (Theresienstr. 39, 80333 München)

I discuss the recent no-go theorem of Frauchiger and Renner based on an ``extended Wigner's friend'' thought experiment which is supposed to show that any single-world interpretation of quantum mechanics leads to inconsistent predictions if it is applicable on all scales. I show that no such inconsistency occurs if one considers a complete description of the physical situation. I then discuss implications of the thought experiment that have not been clearly addressed in the original paper, including a tension between relativity and nonlocal effects predicted by quantum mechanics. My analysis applies in particular to Bohmian mechanics, showing that it provides a perfectly consistent description of the thought experiment.