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- W4313442976 abstract "Since their first introduction, Quantum Reference Frame (QRF) transformations have been extensively discussed, generalising the covariance of physical laws to the quantum domain. Despite important progress, a formulation of QRF transformations for Lorentz symmetry is still lacking. The present work aims to fill this gap. We first introduce a reformulation of relativistic quantum mechanics independent of any notion of preferred temporal slicing. Based on this, we define transformations that switch between the perspectives of different relativistic QRFs. We introduce a notion of ''quantum Lorentz transformations'' and ''superposition of Lorentz boosts'', acting on the external degrees of freedom of a quantum particle. We analyse two effects, superposition of time dilations and superposition of length contractions, that arise only if the reference frames exhibit both relativistic and quantum-mechanical features. Finally, we discuss how the effects could be observed by measuring the wave-packet extensions from relativistic QRFs." @default.
- W4313442976 created "2023-01-06" @default.
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- W4313442976 date "2022-12-28" @default.
- W4313442976 modified "2023-10-18" @default.
- W4313442976 title "Quantum Reference Frames for Lorentz Symmetry" @default.
- W4313442976 doi "https://doi.org/10.48550/arxiv.2212.14081" @default.
- W4313442976 hasPublicationYear "2022" @default.
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