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arXiv · 2512.05961

Entanglement-Enhanced Quantum Nano-Vibrometry

Colin P. Lualdi·Joshua Rapp·Spencer J. Johnson·Michael Vayninger·Paul G. Kwiat
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Abstract

The study of dynamic systems at the nanometer scale can benefit from the loss and background resilience offered by quantum two-photon interference. However, fast measurements with the required resolution are difficult to realize. As a solution, we introduce extreme energy entanglement between the photons undergoing interference. Using a flux probing analysis technique, we recover vibrational signals with frequencies as high as 21 kHz. Along with validating nanometer-scale precision and accuracy, we observe a significant quantum advantage when measuring in the presence of loss and background.

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Colin P. Lualdi, Joshua Rapp, Spencer J. Johnson, Michael Vayninger, Paul G. Kwiat. 2025-12-05. Entanglement-Enhanced Quantum Nano-Vibrometry. https://arxiv.org/abs/2512.05961

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