### Abstract

We investigate the physics of quantum reference frames. Specifically, we study several simple scenarios involving a small number of quantum particles, whereby we promote one of these particles to the role of a quantum observer and ask what is the description of the rest of the system, as seen by this observer? We highlight the interesting aspects of such questions by presenting a number of apparent paradoxes. By unravelling these paradoxes, we obtain a better understanding of the physics of quantum reference frames.

Translated title of the contribution | Physics within a quantum reference frame |
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Original language | English |

Pages (from-to) | 145304 |

Journal | Journal of Physics A: Mathematical and Theoretical |

Volume | 44 |

DOIs | |

Publication status | Published - 2011 |

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## Cite this

Angelo, R., Brunner, N., Popescu, S., Short, A. J., & Skrzypczyk, P. (2011). Physics within a quantum reference frame.

*Journal of Physics A: Mathematical and Theoretical*,*44*, 145304. https://doi.org/10.1088/1751-8113/44/14/145304