Probing Vacuum Field Fluctuations and Source Radiation Separately in Space and Time

• URL: http://arxiv.org/abs/2305.06387v2
• Date: Tue, 14 Nov 2023 12:04:51 GMT
• Title: Probing Vacuum Field Fluctuations and Source Radiation Separately in Space and Time
• Authors: Frieder Lindel, Alexa Herter, J\'er\^ome Faist, Stefan Yoshi Buhmann
• Abstract summary: Source radiation (radiation reaction) and vacuum-field fluctuations can be seen as two inseparable contributions to processes such as spontaneous emission. We propose how they can be individually probed and their space-time structure revealed in electro-optic sampling experiments.
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• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: Source radiation (radiation reaction) and vacuum-field fluctuations can be seen as two inseparable contributions to processes such as spontaneous emission, the Lamb shift, or the Casimir force. Here, we propose how they can be individually probed and their space-time structure revealed in electro-optic sampling experiments. This allows to experimentally study causality at the single photon level and to reveal space- and time-like correlations in the quantum vacuum. A connection to the time-domain fluctuation-dissipation theorem is also made.

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