Delayed ``Choice'' Quantum Eraser
We report a delayed ``choice'' quantum eraser experiment of the type proposed by Scully and Drühl (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.
Physical Review Letters
- Pub Date:
- January 2000
- Quantum Physics
- twocolumn, 4pages, submitted to PRL