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Conferences > CLEO_SI > 2020 > SM1F > SM1F.7

Terahertz quantum optics in the time-domain: from field correlation measurements on vacuum field fluctuations in free space towards cavity electro-optics

Ileana-Cristina Benea-Chelmus, Francesca Fabiana Settembrini, Yannick Salamin, Yuriy Fedoryshyn, Wolfgang Heni, Delwin L. Elder, Larry R. Dalton, Juerg Leuthold, Giacomo Scalari, and Jerome Faist

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Abstract

The ground state of electromagnetic radiation is characterised by a fluctuating electromagnetic field even in a vacuum. We measure its correlation function as a function of time and space using the electro-optic effect. We determine the spectral content and the amplitude of this state and find excellent agreement with the second quatisation theory.

© 2020 The Author(s)

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