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Sensing Quantum Vacuum Fluctuations with Non-Gaussian Electronic Noise
Phys. Rev. Lett. 134, 166301 – Published 25 April, 2025
DOI: https://doi.org/10.1103/PhysRevLett.134.166301
Abstract
The statistics of electron transport in a quantum conductor is affected by fluctuations of its voltage bias. Here, we show experimentally how a third order correlation in the electromagnetic field arises from the noise of a tunnel junction in the microwave domain being modulated by the vacuum fluctuations generated by a resistor at ultralow temperature. This provides a way to measure the vacuum fluctuations experienced by the junction, not offset by the unavoidable noise added by the detection setup.
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References (35)
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