title: Adaptive quantum state estimation of an entangled qubit state.
abstract: The uncertainty on the estimation of unknown parameters of a quantum state can be reduced by using adaptive measurements. Here we perform adaptive quantum-state estimation of the phase in an entangled two-qubits state. We experimentally demonstrate that the adaptive method outperforms nonadaptive methods.
authors.forename: Stefan
authors.initials: S
authors.lastname: Lerch
authors.forename: André
authors.initials: A
authors.lastname: Stefanov