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arxiv: 1007.2292 · v2 · submitted 2010-07-14 · 🪐 quant-ph

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Physics within a quantum reference frame

Renato M. Angelo , Nicolas Brunner , Sandu Popescu , Anthony J. Short , Paul Skrzypczyk
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classification 🪐 quant-ph
keywords quantumphysicsreferenceframesnumberobserverparadoxesparticles
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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 get a better understanding of the physics of quantum reference frames.

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Reviewed papers in the Pith corpus that reference this work. Sorted by Pith novelty score.

  1. Universal $T$-matrices for quantum Poincar\'e groups: contractions and quantum reference frames

    math.QA 2026-04 unverdicted novelty 7.0

    A new quantum deformation of the centrally extended Poincaré algebra is introduced whose universal T-matrix contracts to the Galilei T-matrix for quantum reference frames and appears as a central extension of the spac...