Measurement of quantum correlations of vacuum outside the light cone
CQT Online Talks – Series: Colloquium
Speaker: Jerome Faist, ETH Zurich
Abstract: One very counter-intuitive result of quantum field theory is that it allows the vacuum to be correlated outside the light cone, i.e. for two points of the space time which would not allow classical information exchange. Using electro-optic sampling, we measure the correlation of vacuum field fluctuations at two different points of space in a non-linear crystal and prove experimentally the existence of these correlations.
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