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quant-ph2017★ 37 cited
Reaching for the quantum limits in the simultaneous estimation of phase and phase diffusion
Magdalena Szczykulska, Tillmann Baumgratz, Animesh Datta
Phase diffusion invariably accompanies all phase estimation strategies -- quantum or classical. A precise estimation of the former can often provide valuable understanding of the p…
quant-ph2016★ 268 cited
Multi-parameter Quantum Metrology
Magdalena Szczykulska, Tillmann Baumgratz, Animesh Datta
The simultaneous quantum estimation of multiple parameters can provide a better precision than estimating them individually. This is an effect that is impossible classically. We re…