Robustness of quantum-enhanced adaptive phase estimation
نویسندگان
چکیده
منابع مشابه
Robust Adaptive Quantum Phase Estimation
Quantum parameter estimation is central to many fields such as quantum computation, communications and metrology. Optimal estimation theory has been instrumental in achieving the best accuracy in quantum parameter estimation, which is possible when we have very precise knowledge of and control over the model. However, uncertainties in key parameters underlying the system are unavoidable and may...
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Shibdas Roy, ∗ Dominic W. Berry, † Ian R. Petersen, ‡ and Elanor H. Huntington 4, § Department of Electrical and Computer Engineering, National University of Singapore, Singapore Department of Physics and Astronomy, Macquarie University, Sydney Research School of Engineering, Australian National University, Canberra Centre for Quantum Computation and Communication Technology, Australian Researc...
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We present a general quantum metrology framework to study the simultaneous estimation of multiple phases in the presence of noise as a discretized model for phase imaging. This approach can lead to nontrivial bounds of the precision for multiphase estimation. Our results show that simultaneous estimation (SE) of multiple phases is always better than individual estimation (IE) of each phase even...
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ژورنال
عنوان ژورنال: Physical Review A
سال: 2019
ISSN: 2469-9926,2469-9934
DOI: 10.1103/physreva.100.012106