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Optimal Frames for Polarization State Reconstruction

MPG-Autoren
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Foreman,  Matthew R.
Vollmer Research Group, Research Groups, Max Planck Institute for the Science of Light, Max Planck Society;
Optics Theory Group, Leuchs Division, Max Planck Institute for the Science of Light, Max Planck Society;

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Aiello,  Andrea
Optical Quantum Information Theory, Leuchs Division, Max Planck Institute for the Science of Light, Max Planck Society;

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Zitation

Foreman, M. R., Favaro, A., & Aiello, A. (2015). Optimal Frames for Polarization State Reconstruction. PHYSICAL REVIEW LETTERS, 115(26): 263901. doi:10.1103/PhysRevLett.115.263901.


Zitierlink: https://hdl.handle.net/11858/00-001M-0000-002D-6334-6
Zusammenfassung
Complete determination of the polarization state of light requires at least four distinct projective measurements of the associated Stokes vector. Stability of state reconstruction, however, hinges on the condition number kappa of the corresponding instrument matrix. Optimization of redundant measurement frames with an arbitrary number of analysis states, m, is considered in this Letter in the sense of minimization of kappa. The minimum achievable kappa is analytically found and shown to be independent of m, except for m = 5 where this minimum is unachievable. Distribution of the optimal analysis states over the Poincare sphere is found to be described by spherical 2 designs, including the Platonic solids as special cases. Higher order polarization properties also play a key role in nonlinear, stochastic, and quantum processes. Optimal measurement schemes for nonlinear measurands of degree t are hence also considered and found to correspond to spherical 2t designs, thereby constituting a generalization of the concept of mutually unbiased bases.