Prediction and retrodiction for a continuously monitored superconducting qubit.

@article{Tan2015PredictionAR,
title={Prediction and retrodiction for a continuously monitored superconducting qubit.},
author={Dian Tan and Steven J. Weber and Irfan Siddiqi and Klaus M{\o}lmer and Kater W. Murch},
journal={Physical review letters},
year={2015},
volume={114 9},
pages={
090403
}
}
• Published 1 September 2014
• Physics
• Physical review letters
The quantum state of a superconducting transmon qubit inside a three-dimensional cavity is monitored by transmission of a microwave field through the cavity. The information inferred from the measurement record is incorporated in a density matrix ρ_{t}, which is conditioned on probe results until t, and in an auxiliary matrix E_{t}, which is conditioned on probe results obtained after t. Here, we obtain these matrices from experimental data and we illustrate their application to predict and…

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