## Abstract

Frauchiger and Renner have recently claimed to prove that ``Single-world interpretations of quantum theory cannot be self-consistent". This is contradicted by a construction due to Bell, inspired by Bohmian mechanics, which shows that any quantum system can be modelled in such a way that there is only one ``world" at any time, but the predictions of quantum theory are reproduced. This Bell-Bohmian theory is applied to the experiment proposed by Frauchiger and Renner, and their argument is critically examined. It is concluded that it is their version of ``standard quantum theory", incorporating state vector collapse upon measurement, that is not self-consistent.

Original language | English |
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Pages (from-to) | 658-669 |

Number of pages | 12 |

Journal | Foundations of Physics |

Volume | 47 |

Issue number | 5 |

Early online date | 7 Apr 2017 |

DOIs | |

Publication status | Published - May 2017 |