Quantum Fisher Information of Schrödinger Cat States
ORAL
Abstract
A general expression for the quantum Fisher information (QFI) of atomic Schrödinger cat states is presented. We analyze the dependence of the QFI on the cat state parameters and demonstrate a possibility to achieve the Heisenberg limit scaling of the Ramsey interferometric measurements. Interplay between non-classical correlations between atoms and maximization of QFI of the cat states is discussed.
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Presenters
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Vladimir S Malinovsky
US Army Research Lab Adelphi
Authors
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Vladimir S Malinovsky
US Army Research Lab Adelphi
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Sebastian C Carrasco
US Army Research Lab Adelphi, DEVCOM Army Research Lab
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Michael H Goerz
US Army Research Lab, DEVCOM Army Research Lab
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Zeyang Li
MIT, Massachusetts Institute of Technology MIT
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Simone Colombo
Massachusetts Institute of Technology
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Vladan Vuletic
Massachusetts Institute of Technology MIT, Massachusetts Institute of Technology