High-Fidelity Software-Defined Quantum Logic on a Superconducting Qudit
Xian Wu, S. L. Tomarken, N. Anders Petersson, L. A. Martinez, Yaniv J. Rosen, Jonathan L. DuBois
DOI 10.1103/PhysRevLett.125.170502 · Physical Review Letters
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Abstract
We present an efficient approach to achieving arbitrary, high-fidelity control of a multilevel quantum system using optimal control techniques. As an demonstration, we implement a continuous, software-defined microwave pulse to realize a 0↔2 SWAP gate that achieves an average gate fidelity of 99.4%. We describe our procedure for extracting the system Hamiltonian, calibrating the quantum and classical hardware chain, and evaluating the gate fidelity. Our work represents an alternative, fully generalizable route towards achieving universal quantum control by leveraging optimal control techniques.
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| Formula | Reported Tc (K) | Pressure (GPa) | Type |
|---|---|---|---|
| Al Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | — | Pressure not reported | unknown |
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