- High quality portfolios were produced using quantum circuits requiring larger numbers of gates (operations on the qubits) than previously demonstrated. Since increasing the number of gates produces more noise, this shows the quality of hardware has improved for performing combinatorial optimization.
- The peak solution quality was observed at higher depth (p=4) on 3 qubits on an IonQ trapped ion machine.
- As a non-trivial effect of studying application dependent performance, an IBM machine with the lowest qubit quality (quantum volume = 8) performed best of all the IBM machines tested.
- Quantum computers presently give variable results depending on the time they were accessed. Variability needs to be considered with all benchmarking numbers, as it can be as high as 29 percent.
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