Journal
NPJ QUANTUM INFORMATION
Volume 7, Issue 1, Pages -Publisher
NATURE RESEARCH
DOI: 10.1038/s41534-021-00380-8
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Funding
- Department of Defense, Air Force Office of Scientific Research, National Defense Science and Engineering Graduate (NDSEG) Fellowship [FA9550-11-C-0028, 32 CFR 168a]
- Army Research Office [W911NF-18-1-0170]
- NSF Graduate Research Fellowships Program
- U.S. Department of Energy, Office of Science, Office of Basic Energy Sciences [DE-SC0019376]
- U.S. Department of Energy (DOE) [DE-SC0019376] Funding Source: U.S. Department of Energy (DOE)
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Analog quantum simulation is expected to be a significant application of near-term quantum devices, and verifying these devices without relying on known simulation results is important as system sizes grow. Experimentally-driven verification protocols for analog quantum simulators are discussed for their sensitivity to error sources and scalability to larger system sizes. These protocols were demonstrated experimentally using a two-qubit trapped-ion analog quantum simulator and numerically using models of up to five qubits.
Analog quantum simulation is expected to be a significant application of near-term quantum devices. Verification of these devices without comparison to known simulation results will be an important task as the system size grows beyond the regime that can be simulated classically. We introduce a set of experimentally-motivated verification protocols for analog quantum simulators, discussing their sensitivity to a variety of error sources and their scalability to larger system sizes. We demonstrate these protocols experimentally using a two-qubit trapped-ion analog quantum simulator and numerically using models of up to five qubits.
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