Team, Johannes Gutenberg Universitaet Mainz (image) Johannes Gutenberg Universitaet Mainz Share Print E-Mail Caption (fltr) Professor Kilian Singer (project head), PhD student Johannes Roßnagel, and Professor Ferdinand Schmidt-Kaler (head of the QUANTUM group) in front of the experimental equipment used to create the heat engine in the laboratory at Mainz University. Credit photo/©: AG QUANTUM Usage Restrictions This image may only be used in connection with the press release "Physicists build engine consisting of one Atom," issued by Johannes Gutenberg University Mainz on April 15, 2016. 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.