there seems to be some confusion i have no article on the delayed quantum eraser do you mean the delayed choice quantum eraser quantum eraser experiment wheeler's delayed choice experiment afshar experiment also note that no article is my article especially the last one i will answer by email if you insist but i'd rather answer on one of the above article's talk pages that way you'd get a choice of answers to see and the mistakes i make will be corrected by others i also am logged into wikipedia more than i have my email open so it would actually be quicker using wikipedia talk