Entanglement between accelerated probes in de Sitter

• URL: http://arxiv.org/abs/2502.20874v3
• Date: Thu, 17 Apr 2025 12:22:49 GMT
• Title: Entanglement between accelerated probes in de Sitter
• Authors: Mayank, K. Hari, Subhajit Barman, Dawood Kothawala,
• Abstract summary: We investigate features of vacuum entanglement as probed by accelerated quantum probes in curved spacetime.<n>The interaction with the quantum field creates a non-local correlation between initially uncorrelated probes accelerating in different directions.<n>Our results suggest that entanglement exhibits independent variations with changes in acceleration and curvature depending on different configurations of detector motion.
• Score: 0.5892638927736115
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: We initiate an investigation into features of vacuum entanglement as probed by accelerated quantum probes in curved spacetime. Focussing specifically on de Sitter (dS) spacetime with curvature $\Lambda$, we obtain several exact results corresponding to different kinematical set-up of the probes. The interaction with the quantum field creates a non-local correlation between initially uncorrelated probes accelerating in different directions. It is well known that a single quantum probe in dS spacetime with uniform acceleration $a$ responds exactly as a quantum probe in Minkowski spacetime with "effective" acceleration $q \equiv\sqrt{a^2+\Lambda}$. However, no such mapping generically exists for the entanglement between probes. Our results suggest that entanglement exhibits independent variations with changes in acceleration and curvature depending on different configurations of detector motion.

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