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A Qubit Dumps Its Heat On the Chip
Resonators coupled to on-chip resistive loads reset multiple transmons while isolating them from warmer external circuitry.
Summary
Resonators coupled to on-chip resistive loads reset multiple transmons while isolating them from warmer external circuitry.
Researchers experimentally demonstrated reset and leakage removal across multiple superconducting transmon qubits using dedicated dissipation units with on-chip resistive loads. The architecture retains Purcell protection while reducing exposure to thermal noise from external wiring. They report a median reset time constant near 48 nanoseconds and, after a 400-nanosecond pulse, residual excited-state populations of 0.29% and 0.67% for two initialization cases. Leakage from the second excited state fell to 0.51% in the reported device.
Why it matters
Resonators coupled to on-chip resistive loads reset multiple transmons while isolating them from warmer external circuitry.
Limits and context
No additional limitation was separately recorded.
Key claims
Resonators coupled to on-chip resistive loads reset multiple transmons while isolating them from warmer external circuitry.
Evidence: source-2026-11-11-012
Sources
- arXiv:2611.14391v1arXiv / Cornell University · primary research
Corrections
No corrections have been recorded for this story.