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Klaus Mølmer

Estimation of atomic interaction parameters by quantum measurements

Publikation: KonferencebidragPosterForskning

Quantum systems, ranging from atomic systems to field modes and mechanical devices are useful precision probes for a variety of physical properties and phenomena.
Measurements by which we extract information about the evolution of single quantum systems yield random results and cause a back action on the system. This back action may be favourable as it randomly quenches the system and triggers a transient evolution with temporal signal correlations which may depend more strongly than the steady state on the desired physical properties.
To identify the quantitative performance of quantum measurement strategies, we address the Fisher information and the Cramér-Rao sensitivity bound.
We investigate monitoring by photon counting, homodyne detection and frequent projective measurements respectively, and exemplify by Rabi frequency estimation in a driven two-level system.
Udgivelsesår18 apr. 2016
Antal sider1
StatusUdgivet - 18 apr. 2016
BegivenhedCoherent Control of Complex Quantum Systems - Okinawa Institute of Science and Technology (OIST), Okinawa, Japan
Varighed: 18 apr. 201621 apr. 2016


KonferenceCoherent Control of Complex Quantum Systems
LokationOkinawa Institute of Science and Technology (OIST)

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