Frequency Spectra Are Plotted Versus Mechanical Deformation in the Diagram (image) Helmholtz Association Share Print E-Mail Caption Frequency spectra are plotted versus mechanical deformation in the diagram. Every atomic quantum system leaves a characteristic white line. Credit Photo: KIT / CFN Usage Restrictions None Share Print E-Mail 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.