Broad-spectrum coherent frequency conversion with kinetic inductance superconducting metastructures
Yufeng Wu, Chaofan Wang, Danqing Wang, Mingrui Xu, Yiyu Zhou, Hong X. Tang
DOI 10.1103/1dsw-rpb5 · Physical Review Applied
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Abstract
Parametric frequency converters (PFCs) play a critical role in bridging the frequency gap between quantum information carriers. PFCs in the microwave band are particularly important for superconducting quantum processors but their operating bandwidth is often strongly limited. Here, we present a multimode kinetic metastructure for parametric frequency conversion between broadly spanning frequency modes. This device comprises a chain of asymmetric kinetic inductance grids designed to deliver efficient three-wave-mixing nonlinearity. We demonstrate highly efficient coherent conversion among broadly distributed modes and the mode frequency is continuously tunable by controlling the external magnetic field strength, making it ideally suited for quantum computing and communication applications requiring flexible and efficient frequency conversion.
Source-reported materials — not catalogue approval
| Formula | Reported Tc (K) | Pressure (GPa) | Type |
|---|---|---|---|
| NbN 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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