3 papers
quant-ph2025
Experimentally separating vacuum fluctuations from source radiation
Alexa Herter, Frieder Lindel, Laura Gabriel +2
The unique distinction between vacuum-field and source-radiation induced effects in processes such as the Lamb shift, Casimir forces or spontaneous emission, remains unresolved eve…
quant-ph2023
Entanglement Harvesting from Electromagnetic Quantum Fields
Frieder Lindel, Alexa Herter, Valentin Gebhart +2
In many states of the quantum electromagnetic field, including the vacuum state, entanglement exists between different space-time regions -- even space-like separated ones. These c…
quant-ph2023
Third order nonlinear correlation of the electromagnetic vacuum at near-infrared frequencies
Francesca Fabiana Settembrini, Alexa Herter, Jèrôme Faist
In recent years, electro-optic sampling, which is based on Pockel's effect between an electromagnetic mode and a copropagating, phase-matched ultrashort probe, has been largely use…