Jonathan P. Epperlein (jpe@engineering.ucsb.edu) was awarded the Dipl.-Ing. degree in engineering cybernetics from Otto-von-Guericke Universität, Magdeburg, Germany, in 2008 and the M. Sc. in electrical and computer engineering from the University of California, Santa Barbara, in 2011, where he is currently pursuing a Ph.D. degree. He has also spent time at the Hamilton Institute in Maynooth, Ireland, Yale University, and Harvard Medical School. His current research interests include modeling and control of thermoacoustic systems, spatially invariant distributed-parameter systems, and optimal periodic control. He can be contacted at the Department of Mechanical Engineering, Building Eng. II, Room 2355, University of California, Santa Barbara, Santa Barbara, CA 93106-5070 USA.