Preprint
Sep 2026
Quantum environment afterglow from broadband excitation spectroscopy in superconducting qubits
Understanding the qubit environment is central to fault-tolerant superconducting quantum computation. Characterization typically relies on relaxation, leaving excitation largely underexplored. Here, we access this information with time-resolved broadband excitation spectroscopy. The resulting qubit excitation spectrum...
J. R. Guimarães, Y. Liu, Y. Gao et al.
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