218 citations · 1k across the 17 of their papers we have counts for
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quant-ph2005★ 89 cited
Optimal full estimation of qubit mixed states
E. Bagan, M. A. Ballester, R. D. Gill +2
We obtain the optimal scheme for estimating unknown qubit mixed states when an arbitrary number N of identically prepared copies is available. We discuss the case of states in the…
quant-ph2005★ 154 cited
Optimal phase measurements with pure Gaussian states
Alex Monras
We analyze the Heisenberg limit on phase estimation for Gaussian states. In the analysis, no reference to a phase operator is made. We prove that the squeezed vacuum state is the m…