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- W4287725073 abstract "Direct state measurement (DSM) is a tomography method that allows for retrieving quantum states' wave functions directly. However, a shortcoming of current studies on the DSM is that it does not provide access to noisy quantum systems. Here, we attempt to fill the gap by investigating the DSM measurement precision that undergoes the state-preparation-and-measurement (SPAM) errors. We manipulate a quantum controlled measurement framework with various configurations and compare the efficiency between them. Under such SPAM errors, the state to be measured lightly deviates from the true state, and the measurement error in the postselection process results in less accurate in the tomography. Our study could provide a reliable tool for SPAM errors tomography and contribute to understanding and resolving an urgent demand for current quantum technologies." @default.
- W4287725073 created "2022-07-26" @default.
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- W4287725073 date "2020-07-10" @default.
- W4287725073 modified "2023-09-29" @default.
- W4287725073 title "Direct state measurements under state-preparation-and-measurement errors" @default.
- W4287725073 doi "https://doi.org/10.48550/arxiv.2007.05294" @default.
- W4287725073 hasPublicationYear "2020" @default.
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