Papers › Computational modeling of decay and hybridization in superconducting circuits
Computational modeling of decay and hybridization in superconducting circuits
Michael G. Scheer, Maxwell B. Block
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We present a framework for modeling superconducting circuits that integrates classical microwave analysis with circuit quantization. Our framework enables the calculation of the lossy eigenmodes of superconducting circuits, and we demonstrate the method by analyzing several circuits relevant to multiplexed, Purcell filtered transmon readout architectures. We show that the transmon relaxation times obtained by our method agree with the established approximation T₁ ≈C/Re[Y(iω_q)] away from environmental resonances and do not vanish on resonance. We also show that the hybridization of the modes in the readout circuit is highly sensitive to the bandwidth of the Purcell filter.
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