Experimental simulation of spin-1 states by second-order type-II parametric down-conversion
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Key Laboratory of Multi-photon Entanglement and Manipulation of Shandong Province, Department of Physics and Electronic Science, Weifang University, Weifang 261061, China

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    Abstract:

    In this paper, by using the second-order parametric down-conversion of the nonlinear crystal, the spin-1 state is simulated by the two-photon polarization entangled modes. Through adjusting the laser pulse power density, the efficiency of second-order parametric down-conversion is enhanced. The intensity of the spin-1 state is 0.5/s. The fidelity of the state is up to F=0.891±0.002, and the contrast is C=17.3. The results provide a new method for Stern-Gerlach measurement on the spin-1 system.

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ZHAO Jia-qiang, CAO Lian-zhen, YANG Yang, LU Huai-xin. Experimental simulation of spin-1 states by second-order type-II parametric down-conversion[J]. Optoelectronics Letters,2017,13(1):74-76

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History
  • Received:October 26,2016
  • Online: January 11,2017
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