Abstract
Making a position measurement to determine which way a particle goes through a double slit apparatus necessarily destroys the interference pattern. In well known welcher Weg experiments, such as Einstein’s recoiling slit, the destruction of interference can be explained by a classical random momentum transfer, described by a convolution of the momentum probability distribution with a momentum-kick probability distribution. It is possible, however, to construct welcher Weg schemes (eg that of Scully et al. [1]) in which the fundamental quantum description in terms of momentum transfer probability amplitudes cannot be expressed classically [2].
© 1996 Optical Society of America
PDF ArticleMore Like This
M. A. Horne, A. Zeilinger, and M. Zukowski
PTu042 International Quantum Electronics Conference (IQEC) 1992
M. E. J. Friese, J. Enger, H. Rubinsztein-Durtlop, and N. R. Heckenberg
QThF23 Quantum Electronics and Laser Science Conference (CLEO:FS) 1996
AG Truscott, D Baleva, and H Rubinsztein-Dunlop
TuL11 International Quantum Electronics Conference (IQEC) 1996