Ávila, Partricio and Okon, Elias and Sudarsky, Daniel and Wiedemann, Martín (2022) Quantum spatial superpositions and the possibility of superluminal signaling. [Preprint]

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Abstract

Mari et al. [Sci. Rep. 6, 22777 (2016)] and Belenchia et al. [Phys. Rev. D 98, 126009 (2018)] explore a gedankenexperiment in which the (gravitational or electromagnetic) interaction between two objects, one placed in a state of quantum superposition of two locations, seems to allow for faster-than-light communication. Building on the analysis carried out in Mari et al. [Sci. Rep. 6, 22777 (2016).], Belenchia et al. [Phys. Rev. D 98, 126009 (2018)] argue that, by considering the quantization of radiation and the existence of vacuum quantum fluctuations of the fields, the apparent possibility of superluminal signaling is completely avoided. Moreover, in the gravitational case, such a conclusion is taken as providing support for the view that gravity must necessarily have a quantum nature. In this work, we reconsider the situation and find several limitations of these assessments.

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Item Type:	Preprint
Creators:	Creators Email ORCID Ávila, Partricio Okon, Elias eokon@filosoficas.unam.mx Sudarsky, Daniel sudarsky@nucleares.unam.mx Wiedemann, Martín
Keywords:	Superluminal signaling; semiclassical gravity; quantum gravity; quantum superpositions; gedankenexperiments; quantum vacuum fluctuations.
Subjects:	Specific Sciences > Physics Specific Sciences > Physics > Quantum Gravity Specific Sciences > Physics > Quantum Mechanics Specific Sciences > Physics > Relativity Theory
Depositing User:	Dr. Elias Okon
Date Deposited:	10 Apr 2022 18:33
Last Modified:	10 Apr 2022 18:33
Item ID:	20429
Subjects:	Specific Sciences > Physics Specific Sciences > Physics > Quantum Gravity Specific Sciences > Physics > Quantum Mechanics Specific Sciences > Physics > Relativity Theory
Date:	3 April 2022
URI:	https://philsci-archive.pitt.edu/id/eprint/20429

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• Quantum spatial superpositions and the possibility of superluminal signaling. (deposited 10 Apr 2022 18:33) [Currently Displayed]
  • Quantum spatial superpositions and the possibility of superluminal signaling. (deposited 06 Dec 2022 13:50)

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