2018/06/19 by S. M. Giampaolo, Tommaso Macrì, Giampaolo, Salvatore M. +1 · 1 citation
Physics and Astronomy · #FOS: Physical sciences #Quantum Electrodynamics and Casimir Effect #Quantum Mechanics and Applications #Quantum Physics (quant-ph) #Relativity and Gravitational Theory
paper · pdf · doi:10.48550/arxiv.1806.08383
openalex publication_date 2018/06/19 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
It is a general belief that all fundamental interactions need to be\nquantized. However, all attempts to develop a quantum theory of gravity\npresented various problems, leading to a recent active debate about how to\nprobe its quantum nature. In the present work we provide a proof for the\nnecessity of quantizing fundamental interactions demonstrating that a quantum\nversion is needed for any non trivial conservative interaction whose strength\nis a function of the relative distance between two objects. Our proof is based\non a consistency argument that in the presence of a classical field two\ninteracting objects in a separable state could not develop entanglement. This\nrequirement can be cast in the form of a holonomic constraint that cannot be\nsatisfied by generic interparticle potentials. Extending this picture of local\nholonomic constraints, we design a protocol that allows to measure the terms of\na multipole expansion of the interaction of two composite bodies. The results\npresented in this work can pave the way for a study of fundamental interactions\nbased on the analysis of entanglement properties.\n