Central-moment description of polarization for quantum states of light
- Central-moment description of polarization for quantum states of light
- 임향택; G. Bjork; J. Soderholm; 김용수; 라영식; C. Kothe; 김윤호; L. L. Sanchez-Soto; A. B. Klimov
- Issue Date
- Physical review. A
- VOL 85, NO 5-053835-12
- We present a moment expansion for the systematic characterization of the polarization properties of quantum states of light. Specifically,we link the method to themeasurements of the Stokes operator in different directions on the Poincar´e sphere and provide a scheme for polarization tomography without resorting to full-state tomography. We apply these ideas to the experimental first- and second-order polarization characterization of some two-photon quantum states. In addition, we show that there are classes of states whose polarization characteristics are dominated not by their first-order moments (i.e., the Stokes vector) but by higher-order polarization moments.
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