Experimental demonstration of quantum entanglement between frequency-nondegenerate optical twin beams.

نویسندگان

  • Xiaolong Su
  • Aihong Tan
  • Xiaojun Jia
  • Qing Pan
  • Changde Xie
  • Kunchi Peng
چکیده

The quantum entanglement of amplitude and phase quadratures between two intense optical beams with a total intensity of 22 mW and a frequency difference of 1 nm, which are produced from an optical parametric oscillator operating above threshold, is experimentally demonstrated with two sets of unbalanced Mach-Zehnder interferometers. The measured quantum correlations of intensity and phase are in reasonable agreement with the results calculated based on a semiclassical analysis of the noise characteristics given by Fabre et al. [J. Phys. (France) 50, 1209 (1989)].

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عنوان ژورنال:
  • Optics letters

دوره 31 8  شماره 

صفحات  -

تاریخ انتشار 2006