Response of a classical mesoscopic oscillator to a two-level quantum system

• URL: http://arxiv.org/abs/2509.04216v2
• Date: Mon, 22 Sep 2025 23:16:19 GMT
• Title: Response of a classical mesoscopic oscillator to a two-level quantum system
• Authors: Felipe Sobrero, Luca Abrahão, Thiago Guerreiro, Pedro V. Paraguassú,
• Abstract summary: We investigate the dynamics of a classical mechanical oscillator coupled to a single qubit.<n>The qubit's influence manifests as deterministic and forces, highly dependent on its initial quantum state.<n>The present results suggest a pathway to quantum state reconstruction through classical noise spectroscopy.
• Score: 0.0
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: We investigate the dynamics of a classical mechanical oscillator coupled to the simplest quantum system, a single qubit. The qubit's influence manifests as deterministic and stochastic forces, highly dependent on its initial quantum state, imprinting unique measurable quantum-induced signatures onto the oscillator's response. The present results suggest a pathway to quantum state reconstruction through classical noise spectroscopy, with potential applications to mesoscopic optomechanical experiments, quantum metrology, and tabletop tests of the quantum nature of gravity.

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