Loss of coherence in double-slit diffraction experiments (7 pages)

Ángel S. Sanz, F. Borondo, Martin J. Bastiaans

The effects of incoherence and decoherence in a double-slit experiment are studied using both optical and quantum-phenomenological models. The results are compared with experimental data obtained with cold neutrons.

Björn Zimmermann, Daniel Rolles, B. Langer +12 more

Roderich Tumulka, Andrea Viale, Nino Zanghı̀

In diffraction experiments with particle beams, several effects lead to a fringe visibility reduction of the interference pattern. We theoretically describe the intensity one can measure in a double-slit setup and compare the results with the experimental data obtained with cold neutrons. Our conclusion is that for cold neutrons the fringe visibility reduction is due not to decoherence, but to initial incoherence.

Hong Li, Nuo Ba, Xiang-Yao Wu +5 more

Natalie G. Ferris

Bingxin Zhang

At the present time,the phenomena of many particles diffraction have been studied in many experiments,and these experiments have been explained by some theoretical works.We study the double-slit diffraction by a quantum mechanical approach.Starting from the Schredinger equation and using Kirchhoff's law,we obtain the diffraction wave functions for the double-slit.We find that when the effects of decoherece is considered in the C60 double-slit diffraction,the calculation results are in accordance with experimental data.