Parametric pumping realizes on-demand several-MHz coupling between a Josephson circuit and solid-state spin ensemble for potential quantum state transfer.
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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.
Recasts LEO quantum control in nonperturbative Floquet-Magnus framework to derive low-frequency pulse conditions, proves equivalence to prior zero-order results, and validates on spin-chain state transfer and two-level adiabatic speedup.
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.
citing papers explorer
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Parametrically induced strong coupling between a superconducting quantum circuit and a solid-state spin ensemble
Parametric pumping realizes on-demand several-MHz coupling between a Josephson circuit and solid-state spin ensemble for potential quantum state transfer.
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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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Nonperturbative Leakage Elimination Operator-Based Quantum Control Pulse Design Beyond the High Frequency Driving Regime
Recasts LEO quantum control in nonperturbative Floquet-Magnus framework to derive low-frequency pulse conditions, proves equivalence to prior zero-order results, and validates on spin-chain state transfer and two-level adiabatic speedup.