Deriving the General Conditions of Wave Interference in Double Slit Experiment

M. Bauer

Unlike the usual interference experiment with two slits separated in space, a time double-slit experiment uses the equivalent of a single slit covered by a shutter that is opened and closed and then quickly opened and closed again. Such experiments have recently been performed, providing further confirmation of wave-particle duality. In either type of experiment, the wave function beyond the slit(s) initially has two peaks that then spread and interfere. This article derives the results of these experiments in a schematic, but analytic solution of the time-dependent Schrödinger equation with appropriate initial conditions. In the space double-slit case, in addition to the transverse interference pattern, the time evolution at a fixed position exhibits an oscillating transient behavior similar to that obtained in the time double-slit experiment. Finally, the schematic model also reproduces the observed progressive visibility of the interference pattern obtained as a movable mask is displaced in front of the double-slit.

E. Parr

Dahm, Timon K.

zhiwei lyu, Nan Lv, Tong Lyu

The double-slit interference experiment has long been regarded as a cornerstone of the wave theory of light. However, optical interference patterns are absent in everyday life, prompting many scientists to question the validity of the experiment under specific conditions. Until now, no experiments have definitively challenged this theory. Here, we revisit double-slit experiment through experimental validation. Results show that light and dark fringes are not caused by light wave interference, but rather by diffraction from vertical walls of the slits. This discovery challenges the conventional wave interference theory and presents a new perspective on the pulse nature of light, where overlapping spectra enhance energy without cancelation. This research offers novel insights into the nature of light and introduces new perspectives for optical research.

zhiwei lyu, Nan Lv, Tong Lyu

The double-slit interference experiment has long been regarded as a cornerstone of the wave theory of light. However, optical interference patterns are absent in everyday life, prompting many scientists to question the validity of the experiment under specific conditions. Until now, no experiments have definitively challenged this theory. Here, we revisit double-slit experiment through experimental validation. Results show that light and dark fringes are not caused by light wave interference, but rather by diffraction from vertical walls of the slits. This discovery challenges the conventional wave interference theory and presents a new perspective on the pulse nature of light, where overlapping spectra enhance energy without cancelation. This research offers novel insights into the nature of light and introduces new perspectives for optical research.

M. Bauer