Delayed "Choice" quantum eraser
We report a delayed "choice" quantum eraser experiment of the type proposed by Scully and Druhl (where the "choice" is made randomly by a photon at a beam splitter). The experimental results demonstrate the possibility of delayed determination of particlelike or wavelike behavior via quantum entanglement. The which-path or both-path information of a quantum can be marked or erased by its entangled twin even after the registration of the quantum.
Kim
YH
Department of Physics, University of Maryland, Baltimore County, Baltimore, Maryland 21250, USA.
Yu
R
Kulik
SP
Shih
Y
Scully
MO