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Landau-Zener-Stuckelberg-Majorana interference in a 3D transmon driven by a chirped microwave

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arxiv 1602.03284 v1 pith:XXJG7UV2 submitted 2016-02-10 cond-mat.supr-con cond-mat.mes-hallquant-ph

Landau-Zener-Stuckelberg-Majorana interference in a 3D transmon driven by a chirped microwave

classification cond-mat.supr-con cond-mat.mes-hallquant-ph
keywords avoidedcrossingmicrowavequantumchirpdrivingenergy-levelinterference
verification ladder T0 review T1 audit T2 compute T3 formal T4 reserved
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By driving a 3D transmon with microwave fields, we generate an effective avoided energy-level crossing. Then we chirp microwave frequency, which is equivalent to driving the system through the avoided energy-level crossing by sweeping the avoided crossing. A double-passage chirp produces Landau-Zener-St\"uckelberg-Majorana interference that agree well with the numerical results. Our method is fully applicable to other quantum systems that contain no intrinsic avoided level crossing, providing an alternative approach for quantum control and quantum simulation.

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