420 citations · 443 across the 7 of their papers we have counts for
7 papers
Fast high-fidelity charge readout by operating the cavity-embedded Cooper pair transistor in the Kerr bistable regime
Bhargava Thyagarajan, Sisira Kanhirathingal, Benjamin L. Brock +3
Operating the cavity-embedded Cooper pair transistor (cCPT) in the Kerr bistable regime, we demonstrate single-shot resolution between two charge states that are apart. The…
Real-time quantum error correction beyond break-even
V. V. Sivak, A. Eickbusch, B. Royer +10
The ambition of harnessing the quantum for computation is at odds with the fundamental phenomenon of decoherence. The purpose of quantum error correction (QEC) is to counteract the…
Feedback stabilization of the resonant frequency in tunable microwave cavities with single-photon occupancy
S. Kanhirathingal, B. Thyagarajan, B. L. Brock +5
We successfully demonstrate low-frequency noise suppression in the resonant frequency fluctuations of a cavity-embedded Cooper pair transistor (cCPT) driven at single-photon occupa…
Fast and Ultrasensitive Electrometer Operating at the Single-Photon Level
B. L. Brock, Juliang Li, S. Kanhirathingal +3
We demonstrate fast and ultrasensitive charge detection with a cavity-embedded Cooper pair transistor (cCPT) via dispersive readout of its Josephson inductance. We report a minimum…
Charge sensitivity of a cavity-embedded Cooper pair transistor limited by single-photon shot noise
S. Kanhirathingal, B. L. Brock, A. J. Rimberg +1
Using an operator scattering approach, we analyze the quantum dynamics of an ultrasensitive electrometer -- a Cooper pair transistor embedded in a quarter-wave microwave cavity (cC…
A Nonlinear Charge- and Flux-Tunable Cavity Derived from an Embedded Cooper Pair Transistor
B. L. Brock, Juliang Li, S. Kanhirathingal +4
We introduce the cavity-embedded Cooper pair transistor (cCPT), a device which behaves as a highly nonlinear microwave cavity whose resonant frequency can be tuned both by charging…
Frequency Fluctuations in Tunable and Nonlinear Microwave Cavities
B. L. Brock, M. P. Blencowe, A. J. Rimberg
We present a model for how frequency fluctuations comparable to the total cavity linewidth may arise in tunable and nonlinear microwave cavities, and how these fluctuations affect…