Christopher Hilweg^1,2, Eric Oelker³, Nergis Mavalvala³, and Philip Walther^1,2,6,§

• ¹Faculty of Physics, University of Vienna, Vienna Center for Quantum Science and Technology (VCQ), Boltzmanngasse 5, 1090 Vienna, Austria
• ²University of Vienna, Research Network Quantum Aspects of Spacetime (TURIS), Boltzmanngasse 5, 1090 Vienna, Austria
• ³Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA
• ⁴Faculty of Physics and Vienna Doctoral School in Physics (VDSP), University of Vienna, Boltzmanngasse 5, 1090 Vienna, Austria
• ⁵Center for Theoretical Physics of the Polish Academy of Sciences, aleja Lotników 32/46, PL 02-668 Warszawa, Poland
• ⁶Institute for Quantum Optics and Quantum Information (IQOQI) Vienna, Austrian Academy of Sciences, Boltzmanngasse 3, 1090 Vienna, Austria

• ^*Present address: Department of Physics and Astronomy, University of Tennessee, Knoxville, 1408 Circle Drive, Knoxville, Tennessee 37996, USA.
• ^†Contact author: haocunyu@utk.edu
• ^‡Present address: Université Côte d’Azur, Observatoire de la Côte d’Azur, Artemis, CNRS, 06304 Nice, France.
• ^§Contact author: philip.walther@univie.ac.at