Philip Walther received the Ph.D. degree in physics from the University of Vienna, Vienna, Austria, in 2005. After three years as a Postdoctoral Research with Harvard University, Cambridge, MA, USA, he returned to the University of Vienna, in 2008, where he has been a Professor of physics since 2015. He has authored or coauthored more than 80 publications in international journals and given more than 130 invited talks at international conferences. His research is dedicated to the development of advanced of quantum technology for applications in quantum information processing and for investigations in quantum science. The experiments are focused on photonic quantum computation and quantum simulation and quantum foundations such as indefinite causal structures and the measurement of weak gravitational effects on single photons using table-top setups. He is Fellow of the American Physical Society and the Optical Society of America.