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Model for monitoring of a charge qubit using a radio-frequency quantum point contact including experimental imperfections
Neil P. Oxtoby, Jay Gambetta, H. M. Wiseman
The extension of quantum trajectory theory to incorporate realistic imperfections in the measurement of solid-state qubits is important for quantum computation, particularly for th…
Sensitivity and back-action in charge qubit measurements by a strongly coupled single-electron transistor
Neil P. Oxtoby, H. M. Wiseman, He-Bi Sun
We consider charge-qubit monitoring (continuous-in-time weak measurement) by a single-electron transistor (SET) operating in the sequential-tunneling regime. We show that commonly…
Quantum trajectories for the realistic measurement of a solid-state charge qubit
Neil P. Oxtoby, P. Warszawski, H. M. Wiseman +2
We present a new model for the continuous measurement of a coupled quantum dot charge qubit. We model the effects of a realistic measurement, namely adding noise to, and filtering,…