English

Binding quantum matter and space-time, without romanticism

History and Philosophy of Physics 2018-11-14 v1 General Relativity and Quantum Cosmology Quantum Physics

Abstract

Understanding the emergence of a tangible 4-dimensional space-time from a quantum theory of gravity promises to be a tremendously difficult task. This article makes the case that this task may not have to be carried. Space-time as we know it may be fundamental to begin with. I recall the common arguments against this possibility and review a class of recently discovered models bypassing the most serious objection. The generic solution of the measurement problem that is tied to semiclassical gravity as well as the difficulty of the alternative make it a reasonable default option in the absence of decisive experimental evidence.

Keywords

Cite

@article{arxiv.1802.03291,
  title  = {Binding quantum matter and space-time, without romanticism},
  author = {Antoine Tilloy},
  journal= {arXiv preprint arXiv:1802.03291},
  year   = {2018}
}

Comments

13 pages, 4 figures, branched out from an essay for the Beyond spacetime contest, comments welcome

R2 v1 2026-06-23T00:17:07.577Z