Andreas Bengtsson
3 papers in the PaperMetrix corpus
Papers by this author
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Measurement-induced entanglement and teleportation on a noisy quantum processor
2023 · arXiv (Cornell University)
Measurement has a special role in quantum theory: by collapsing the wavefunction it can enable phenomena such as teleportation and thereby alter the "arrow of time" that constrains unitary evolution. When integrated in many-body dynamics, …
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Josephson parametric amplifier with Chebyshev gain profile and high saturation
2023 · Physical Review Applied
We demonstrate a Josephson parametric amplifier design with a band-pass impedance-matching network based on a third-order Chebyshev prototype. We measured eight amplifiers operating at 4.6 GHz that exhibit gains of 20 dB with less than …
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Dispersive Qubit Readout with Intrinsic Resonator Reset
2024 · JuSER (Forschungszentrum Jülich)
A key challenge in quantum computing is speeding up measurement and initialization. Here, we experimentally demonstrate a dispersive measurement method for superconducting qubits that simultaneously measures the qubit and returns the readout resonator to its …