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Superconducting Qubits
Decay of transmon qubit strongly coupled with a continuum
arXiv
Authors: Ya. S. Greenberg, A. A. Shtygashev, O. V. Kibis
Year
2025
Paper ID
17668
Status
Preprint
Abstract Read
~2 min
Abstract Words
82
Citations
N/A
Abstract
We investigate the decay of three-level artificial atom, a superconducting transmon qubit which interacts with a continuum of modes in an open one-dimensional waveguide. For strong interaction of transmon with a continuum we obtain analytical expressions for the frequency shifts and widths of the resonances the values of which are calculated numerically for the Gaussian density of states. We show that the coupling between the second level and ground state of a transmon significantly influences the decay of the third transmon level.
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- We investigate the decay of three-level artificial atom, a superconducting transmon qubit which interacts with a continuum of modes in an open one-dimensional waveguide.
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