Entanglement-Enhanced Phase Estimation without Prior Phase Information

We study the generation of planar quantum squeezed (PQS) states by quantum nondemolition (QND) measurement of an ensemble of Rb87 atoms with a Poisson distributed atom number. Precise calibration of the QND measurement allows us to infer the conditional covariance matrix describing the Fy and Fz com...

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Detalles Bibliográficos
Autores principales: Colangelo, G., Martin Ciurana, F., Puentes, G., Mitchell, M.W., Sewell, R.J.
Formato: JOUR
Materias:
Atoms
Covariance matrix
Phase estimation
Phase information
Prior knowledge
QND measurements
Quantum nondemolition measurements
Single components
Spin squeezing inequalities
Squeezed state
Quantum theory
Acceso en línea:http://hdl.handle.net/20.500.12110/paper_00319007_v118_n23_p_Colangelo
Aporte de:
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires

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