English

The measurement problem is the measurement problem is the measurement problem

Quantum Physics 2016-11-04 v1

Abstract

Recently, it has been stated that single-world interpretations of quantum theory are logically inconsistent. The claim is derived from contradicting statements of agents in a setup combining two Wigner's-friend experiments. Those statements stem from applying the measurement-update rule subjectively, i.e., only for the respective agent's own measurement. We argue that the contradiction expresses the incompatibility of collapse and unitarity - resulting in different formal descriptions of a measurement - and does not allow to dismiss any specific interpretation of quantum theory.

Keywords

Cite

@article{arxiv.1611.01111,
  title  = {The measurement problem is the measurement problem is the measurement problem},
  author = {Veronika Baumann and Arne Hansen and Stefan Wolf},
  journal= {arXiv preprint arXiv:1611.01111},
  year   = {2016}
}
R2 v1 2026-06-22T16:41:14.286Z