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arXiv · 2303.05638

Molecular entanglement as a signature of the Unruh effect

Yuebing Zhou·Jiawei Hu·Hongwei Yu
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Abstract

The Unruh effect predicts that a uniformly accelerated observer perceives the vacuum seen by an inertial observer as a thermal bath at a temperature proportional to its proper acceleration. This phenomenon is often regarded as a flat spacetime ``cousin" of Hawking radiation. In this Letter, we first study the entanglement dynamics of a quantum system composed of two polarizable two-level subsystems undergoing centripetal acceleration in a vacuum. We demonstrate that the system's steady state can be entangled irrespective of the initial state, a distinct characteristic attributable to the circular manifestation of the Unruh effect. Through meticulous analysis, we then propose that this phenomenon can feasibly be detected using state-of-the-art optomechanical technologies, particularly with a quantum system of two molecules.

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Yuebing Zhou, Jiawei Hu, Hongwei Yu. 2023-03-10. Molecular entanglement as a signature of the Unruh effect. https://doi.org/10.1103/6c2d-pc6k

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