Cross-resonance interactions between superconducting qubits with variable detuning

Autor:	Ware, Matthew, Johnson, Blake R., Gambetta, Jay M., Ohki, Thomas A., Chow, Jerry M., Plourde, B. L. T.
Rok vydání:	2019
Předmět:	Quantum Physics
Druh dokumentu:	Working Paper
Popis:	Cross-resonance interactions are a promising way to implement all-microwave two-qubit gates with fixed-frequency qubits. In this work, we study the dependence of the cross-resonance interaction rate on qubit-qubit detuning and compare with a model that includes the higher levels of a transmon system. To carry out this study we employ two transmon qubits--one fixed frequency and the other flux tunable--to allow us to vary the detuning between qubits. We find that the interaction closely follows a three-level model of the transmon, thus confirming the presence of an optimal regime for cross-resonance gates. Comment: 7 pages, 7 figures
Databáze:	arXiv
Externí odkaz:	http://arxiv.org/abs/1905.11480 Zobrazit plný text záznamu View this record from Arxiv