> Abstract: [...] Here we extend the description of matter used in these theorems to the full framework of quantum field theory, finding that theories with classical gravity can then transmit quantum information and, thus, generate entanglement through physical, local processes.
> The concept at the center of this debate dates back to a 1957 proposal by Nobel laureate Richard Feynman, who suggested that if gravity could cause two massive objects to become quantumly entangled, then gravity itself must be quantum in nature. The idea has recently gained traction as advances in precision measurement make such tests experimentally feasible.
westurner•3mo ago
> Abstract: [...] Here we extend the description of matter used in these theorems to the full framework of quantum field theory, finding that theories with classical gravity can then transmit quantum information and, thus, generate entanglement through physical, local processes.
westurner•3mo ago
> The concept at the center of this debate dates back to a 1957 proposal by Nobel laureate Richard Feynman, who suggested that if gravity could cause two massive objects to become quantumly entangled, then gravity itself must be quantum in nature. The idea has recently gained traction as advances in precision measurement make such tests experimentally feasible.
NewsArticle: "Does gravity produce quantum weirdness? Proposal divides physicists" (2025) https://www.nature.com/articles/d41586-025-03381-1
westurner•3mo ago
Gravity from QFT:
> This says that the standard model actually does describe the n-body orbits of the planets:
> "Perihelion precession of planetary orbits solved from quantum field theory" (2025) https://arxiv.org/abs/2506.14447 .. https://news.ycombinator.com/item?id=45220460
> There's also this:
Fluid models also predict gravity:
> "Fluid vacuum yields exact solutions to Pioneer anomaly and Mercury's perihelion (2019)" https://news.ycombinator.com/item?id=45220585
westurner•3mo ago
Are LEO sats necessary for wireless internet then?