A Cigar-shaped Gas of Magnetic Atoms (IMAGE) University of Innsbruck Caption A cigar-shaped gas of magnetic atoms can support a roton mode: a modulation in the atom spatial organization at a given wavelength, forming a saddle on the energy mountain ridge of its elementary excitations. Credit IQOQI Innsbruck/Harald Ritsch Usage Restrictions Only for reporting on the related research at the IQOQI Innsbruck. 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.