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quant-ph2024
Fast unconditional reset and leakage reduction in fixed-frequency transmon qubits
Liangyu Chen, Simon Pettersson Fors, Zixian Yan +24
The realization of fault-tolerant quantum computing requires the execution of quantum error-correction (QEC) schemes, to mitigate the fragile nature of qubits. In this context, to…
quant-ph2024
Comprehensive explanation of ZZ coupling in superconducting qubits
Simon Pettersson Fors, Jorge Fernández-Pendás, Anton Frisk Kockum
A major challenge for scaling up superconducting quantum computers is unwanted couplings between qubits, which lead to always-on ZZ couplings that impact gate fidelities by shiftin…