Experimental implementation of an efficient test of quantumness

The authors thank Gregory Kahanamoku-Meyer for valuable input. This work is supported by Air Force Office of Scientific Research Young Investigator Program (AFOSR YIP) Grant No. FA9550-16-1-0495, the Simons Foundation (TV Grant No. 828076), the National Science Foundation (NSF) Quantum Leap Challenge Institute (QLCI) program (Grant No. OMA-2016245), the Institute for Quantum Information and Matter (IQIM), an NSF Physics Frontiers Center (Grant No. PHY-1125565) with support of the Gordon and Betty Moore Foundation (Grant No. GBMF-12500028), Dr. Max Rössler, the Walter Haefner Foundation, the ETH Zürich Foundation, a Caltech Summer Undegraduate Research Fellowship, the Army Research Office (ARO) through the Intelligence Advanced Research Projects Activity (IARPA) LogiQ program, the National Science Foundation Software-Tailored Architecture for Quantum Co-design program, the U.S. Department of Energy Quantum Systems Accelerator program, the AFOSR MURI on Scalable Certification of Quantum Computing Devices and Networks (Grant No. FA9550-18-1-0161), the AFOSR MURI on Dissipation Engineering in Open Quantum Systems (Grant No. FA9550-19-1-0399), and the ARO MURI on Modular Quantum Circuits (Grant No. W911NF1610349).