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Twin-paradox and Entanglement
K. Hari, Subhajit Barman, Dawood Kothawala·December 11, 2025
gr-qchep-thQuantum Physics
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Abstract
We study the quantum version of the classical twin paradox in special relativity by replacing the twins with quantum detectors, and studying the transitions and entanglement induced by coupling them to a quantum field. We show that the \textit{changes} in direction of acceleration leave imprints on detector responses and entanglement, inducing novel features which might have relevance in black hole spacetimes.