Alfred Leitenstorfer
Department of Physics, University of Konstanz, Germany
Date
25 October 2017
Host
Jêromé Faist
Title
Time-Domain Quantum Physics of the Electric Field
Abstract
Reading out the nonlinear displacement of valence electrons in a semiconductor with few-femtosecond laser pulses allows direct sampling of electric-field vacuum fluctuations. Noise patterns of squeezed mid-infrared transients are studied as a first application of this new type of quantum technology. Local deviations from the vacuum level arise due to acceleration of the reference frame combined with Heisenberg’s uncertainty principle.
Alfred Leitenstorfer (left) with Jêromé Faist