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Practical schemes for the measurement of angular-momentum covariance matrices in quantum optics

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Rivas, Ángel and Luis Aina, Alfredo (2008) Practical schemes for the measurement of angular-momentum covariance matrices in quantum optics. Physical review A, 78 (4). 043814_1-043814_8. ISSN 1050-2947

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Official URL: http://dx.doi.org/10.1103/PhysRevA.78.043814


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http://journals.aps.org/Publisher


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.


Item Type:Article
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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.

Uncontrolled Keywords:Homodyne detection; Electromagnetic-fields; Operational approach; Conjugate variables; Atom interferometer; Fringe visibility; Local oscillator; Coherent states; Phase; Entanglement
Subjects:Sciences > Physics > Optics
ID Code:30961
Deposited On:23 Jun 2015 14:27
Last Modified:30 Jun 2015 07:53

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