467 citations · 1.4k across the 13 of their papers we have counts for
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TLS Dynamics in a Superconducting Qubit Due to Background Ionizing Radiation
Ted Thorbeck, Andrew Eddins, Isaac Lauer +2
Superconducting qubit lifetimes must be both long and stable to provide an adequate foundation for quantum computing. This stability is imperiled by two-level systems (TLSs), curre…
Quasiparticle tunneling as a probe of Josephson junction barrier and capacitor material in superconducting qubits
C. Kurter, C. E. Murray, R. T. Gordon +15
Non-equilibrium quasiparticles are possible sources for decoherence in superconducting qubits because they can lead to energy decay or dephasing upon tunneling across Josephson jun…
Doubling the size of quantum simulators by entanglement forging
Andrew Eddins, Mario Motta, Tanvi P. Gujarati +4
Quantum computers are promising for simulations of chemical and physical systems, but the limited capabilities of today's quantum processors permit only small, and often approximat…
High-efficiency measurement of an artificial atom embedded in a parametric amplifier
A. Eddins, J. M. Kreikebaum, D. M. Toyli +7
A crucial limit to measurement efficiencies of superconducting circuits comes from losses involved when coupling to an external quantum amplifier. Here, we realize a device circumv…
Stroboscopic qubit measurement with squeezed illumination
Andrew Eddins, Sydney Schreppler, David M. Toyli +6
Microwave squeezing represents the ultimate sensitivity frontier for superconducting qubit measurement. However, observation of enhancement has remained elusive, in part because in…
Effect of higher-order nonlinearities on amplification and squeezing in Josephson parametric amplifiers
Samuel Boutin, David M. Toyli, Aditya V. Venkatramani +3
Single-mode Josephson junction-based parametric amplifiers are often modeled as perfect amplifiers and squeezers. We show that, in practice, the gain, quantum efficiency, and outpu…
Resonance fluorescence from an artificial atom in squeezed vacuum
D. M. Toyli, A. W. Eddins, S. Boutin +6
We present an experimental realization of resonance fluorescence in squeezed vacuum. We strongly couple microwave-frequency squeezed light to a superconducting artificial atom and…