Abstract

The quantum eraser experiment was revisited, using entangled photons of visible light in a Hong-Ou-Handel type interferometer with a magnitude two orders higher than before in count rates. We introduced which-path information by polarization and subsequently erasied this information by means of polarizers in front of detectors. It was found that the visibility of the interference fringe is revived from 0% to 88% as the polarizers are changed from 0<TEX>$^{\circ}$</TEX> to 45<TEX>$^{\circ}$</TEX>.

© 2002 Optical Society of Korea

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