Demonstrates single-step coherent excitation distribution to generate W states in 2D superconducting qubit lattices, achieving 83.9% fidelity for 6 qubits in 99 ns and 79.6% for 7 qubits in 264 ns.
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Experimental verification that transmon ionization under strong readout drives is a controllable Landau-Zener transition, with quantitative measurements of critical photon numbers and population transfer matching a semiclassical model.
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Scalable Single-Step Generation of W States in 2D Superconducting Qubit Lattices
Demonstrates single-step coherent excitation distribution to generate W states in 2D superconducting qubit lattices, achieving 83.9% fidelity for 6 qubits in 99 ns and 79.6% for 7 qubits in 264 ns.
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Probing excited-state dynamics of transmon ionization
Experimental verification that transmon ionization under strong readout drives is a controllable Landau-Zener transition, with quantitative measurements of critical photon numbers and population transfer matching a semiclassical model.