Arrived Safe and Sound (IMAGE) Max-Planck-Gesellschaft Caption The team working with Christoph Marquardt and Gerd Leuchs transmitted pulses with an elliptical, horizontal contour (right) through the air. In the illustration, the squeezed form of the quantum state registered at the receiver can be clearly seen. The short transverse and long longitudinal axis here represent the spread of two properties which are linked to each other via Heisenberg's uncertainty principle. The property which is represented on the short axis assumes values only within a narrow range. The property shown on the long longitudinal axis has a larger spread of measured values. The transitions between the two extremes result in the elliptical shape. The corresponding representation of conventional, non-squeezed states has a circular contour. Credit Copyright: MPI for the Science of Light Usage Restrictions None License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.