Enhancement of frequency estimation by spatially correlated environments
Enhancement of frequency estimation by spatially correlated environments is a scholarly work by Shahriar Salimi, published in 2017 in ''Annals of Physics''. The main subjects of the publication include quantum entanglement, quantum Zeno effect, metrology, Dynamical decoupling, Optomechanics, computer science, quantum information science, quantum decoherence, quantum mechanics, statistical physics, scaling, quantum metrology, noise, semigroup, decoherence-free subspace, physics, quantum, and Dephasing. Here, by considering the impact of the correlated noise in metrology, authors show that spatially correlated environments which lead to a nonlocal and non-semigroup dynamics can improve the precision of a noisy frequency measurement beyond the Zeno scaling.