English

The measure of PBR's reality

Quantum Physics 2018-10-29 v1

Abstract

We review the Pusey-Barret-Rudolph (PBR) theorem\cite{PBR} and their setup, and arrive to the conclusion that the reality of a quantum state ψ\psi is intrinsically attached to the measurement the system described by ψ\psi has undergone. We show that a state that has not been measured can be regarded as pure information, while a state that has been measured has to be regarded as a physical property of a certain system, having a counterpart in reality. This demonstration implies that the statement of PBR's theorem changes in a meaningful way.

Keywords

Cite

@article{arxiv.1810.11072,
  title  = {The measure of PBR's reality},
  author = {Natalia Sánchez-Kuntz and Eduardo Nahmad-Achar},
  journal= {arXiv preprint arXiv:1810.11072},
  year   = {2018}
}

Comments

8 pages, 4 figures