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| Hauptseite > Publikationsdatenbank > Demolition measurement protocol for transmon qubits |
| Hauptseite > Publikationsdatenbank > Demolition measurement protocol for transmon qubits |
| Preprint | FZJ-2026-00984 |
; ;
2025
arXiv
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Please use a persistent id in citations: doi:10.48550/ARXIV.2502.18322
Abstract: The process of measuring a qubit and re-initializing it to the ground state practically lead to long qubit idle times between re-runs of experiments on a superconducting quantum computer. Here, we propose a protocol for a \textit{demolition measurement} of a transmon qubit that integrates qubit readout with the reset process to minimize qubit idle time. We present a three-staged implementation of this protocol, involving a combined qubit readout and resonator reset scheme that unconditionally resets the resonator at the end of the readout; a leakage removal scheme that can be integrated with the measurement stage; and an unconditional qubit reset. We demonstrate that this protocol could be implemented in $1 \, μ$s with greater than $95 \, \%$ reset fidelity and a $99 \, \%$ readout fidelity without any hardware overhead beyond those commonly used. This provides at least a 50x speed up compared to the passive decay of the qubit, thereby significantly increasing the data-acquisition rate.
Keyword(s): Quantum Physics (quant-ph) ; FOS: Physical sciences
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