Practical schemes for the measurement of angular-momentum covariance matrices in quantum optics
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2008
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American Physical Society
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Abstract
We develop practical schemes for the measurement of the covariance matrix for intrinsic angular-momentum variables in quantum optics. We particularize this approach to two-beam polarimetry and interferometry, as well as to ensembles of two-level atoms interacting with classical fields. We show the practical advantages of noisy simultaneous measurements.
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©2008 The American Physical Society. A. R. acknowledges financial support from the University of Hertfordshire and the EU Integrated Project QAP. A. L. acknowledges support from Project No. FIS2008-01267/FIS of the Spanish Direccion General de Investigacion del Ministerio de Ciencia e Innovacion.