Molecular entanglement as a signature of the Unruh effect

• URL: http://arxiv.org/abs/2303.05638v2
• Date: Sat, 20 Sep 2025 01:38:38 GMT
• Title: Molecular entanglement as a signature of the Unruh effect
• Authors: Yuebing Zhou, Jiawei Hu, Hongwei Yu,
• Abstract summary: 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.<n>We first study the entanglement dynamics of a quantum system composed of two polarizable two-level subsystems undergoing centripetal acceleration in a vacuum.
• Score: 6.2534977470785655
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• 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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