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Unifying parameter estimation and the Deutsch-Jozsa algorithm for continuous variables
Marcin Zwierz, Carlos A. Pérez-Delgado, Pieter Kok
We reveal a close relationship between quantum metrology and the Deutsch-Jozsa algorithm on continuous variable quantum systems. We develop a general procedure, characterized by tw…
General optimality of the Heisenberg limit for quantum metrology
Marcin Zwierz, Carlos A. Perez-Delgado, Pieter Kok
Quantum metrology promises improved sensitivity in parameter estimation over classical procedures. However, there is an extensive debate over the question how the sensitivity scale…
Optimality of the Heisenberg limit for continuous-variable quantum metrology
Marcin Zwierz, Carlos A. Perez-Delgado, Pieter Kok
This paper has been withdrawn by the authors due to a fatal flaw in the central proof.
Geometric derivation of the quantum speed limit
Philip J. Jones, Pieter Kok
The Mandelstam-Tamm and Margolus-Levitin inequalities play an important role in the study of quantum mechanical processes in Nature, since they provide general limits on the speed…