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quant-ph2007★ 117 cited
Quantum-limited metrology with product states
Sergio Boixo, Animesh Datta, Steven T. Flammia +3
We study the performance of initial product states of n-body systems in generalized quantum metrology protocols that involve estimating an unknown coupling constant in a nonlinear…
quant-ph2006★ 12 cited
Constrained bounds on measures of entanglement
Animesh Datta, Steven T. Flammia, Anil Shaji +1
Entanglement measures constructed from two positive, but not completely positive maps on density operators are used as constraints in placing bounds on the entanglement of formatio…