| Autor: |
Willsch, D., Nocon, M., Jin, F., De Raedt, H., Michielsen, K. |
| Rok vydání: |
2017 |
| Předmět: |
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| Zdroj: |
Phys. Rev. A 96, 062302 (2017) |
| Druh dokumentu: |
Working Paper |
| DOI: |
10.1103/PhysRevA.96.062302 |
| Popis: |
In the model of gate-based quantum computation, the qubits are controlled by a sequence of quantum gates. In superconducting qubit systems, these gates can be implemented by voltage pulses. The success of implementing a particular gate can be expressed by various metrics such as the average gate fidelity, the diamond distance, and the unitarity. We analyze these metrics of gate pulses for a system of two superconducting transmon qubits coupled by a resonator, a system inspired by the architecture of the IBM Quantum Experience. The metrics are obtained by numerical solution of the time-dependent Schr\"odinger equation of the transmon system. We find that the metrics reflect systematic errors that are most pronounced for echoed cross-resonance gates, but that none of the studied metrics can reliably predict the performance of a gate when used repeatedly in a quantum algorithm. |
| Databáze: |
arXiv |
| Externí odkaz: |
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