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\bibitem{Agullo_etal2023} Agullo, I., Bonga, B., Ribes-Metidieri, P., Kranas, D., \& Nadal-Gisbert, S. (2023). How ubiquitous is entanglement in quantum field theory? \textit{Phys. Rev. D}, \textit{108}(8), 085005--25pp.

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