Twin-paradox and Entanglement

TL;DR

This paper explores the quantum twin paradox by analyzing how acceleration-induced changes affect detector responses and entanglement, with potential implications for black hole physics.

Contribution

It introduces a quantum framework for the twin paradox, examining how acceleration impacts entanglement and detector responses in quantum field theory.

Findings

Acceleration changes influence detector responses.

Entanglement is affected by acceleration and direction changes.

Potential relevance to black hole spacetime phenomena.

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.