2016/06/09 by Roberto Pierini, Shahpoor Moradi, Stefano Mancini · 1 citation
Physics and Astronomy · #Anisotropy #Black Holes and Theoretical Physics #Classical mechanics #Cosmology and Gravitation Theories #Entropy (arrow of time) #Galaxies: Formation, Evolution, Phenomena #Isotropy #Physics #Quantum #Quantum entanglement #Quantum mechanics #Spacetime #Theoretical physics #Universe #gr-qc #quant-ph
paper · pdf · doi:10.1016/j.nuclphysb.2017.09.025
published as Nuclear Physics B 924 (2017) 684 · 14 pages
arxiv created 2016/06/09 · openalex publication_date 2017/10/11 · arxiv updated 2017/11/16 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05
Most existing cosmological entanglement studies are focused on the isotropic Robertson–Walker (RW) spacetime. Here we go beyond this limitation and study the influence of anisotropy on entanglement generated by dynamical spacetime. Since the isotropic spacetime is viewed as a background medium and the anisotropy is incorporated as perturbation, we decompose entanglement entropy into isotropic and anisotropic contributions. The latter is shown to be non-negligible by analyzing two cosmological models with weak and conformal coupling. We also show the possibility of using entanglement to infer about universe features.