Double-slit interference: The moving picture

E. L. Cleveland

Lingguang Xu

The double-slit experiment is usually interpreted as proof of wave-particle duality. In this note we propose an alternative picture based on the XLG cosmology. Light is not a stream of point-like particles nor a continuous classical wave. It is a train of bubbles — coherent, extended structures that move in a queue. Each bubble executes an S-shaped internal vibration (the first wave), while the spacing between bubbles defines a second, macroscopic wave (the queue rhythm wave). Interference arises when a single queue splits into two (e.g., at a double slit or double pinhole), and the two sub-queues recombine behind the screen. Detection of “which path” does not collapse a wave function; it physically disrupts the queue synchronism. The picture is local, intuitive, and makes distinct predictions testable with weak measurements and two-pinhole experiments. It suggests that wave-particle duality is a historical conflation of two different waves.

haijiang liu, Tianyi Liu, Xiaodong Xu +1 more

The bright dark stripe image of double slit interference is significantly different from the bright dark stripe image of single slit diffraction. At present, there is no research on how to transition from double slit interference to single slit diffraction for bright and dark stripe images. An experiment was proposed to observe the changes in bright and dark stripe images by gradually blocking the right slit of the double slit, transforming the double slit interference into single slit diffraction. A new discovery has been made, which cannot be explained by the wave theory of light, a bright stripe that cannot disappears. A new theory was proposed that after passing through the double slit mask, light move in a spiral elliptical shape, and photons are thrown out at the edge of the ellipse, which is also the center of the double slit mask, forming a bright stripe forward. And the residual light from the left slit creates a bright stripe that cannot disappears. Finally, software simulations using Python Turtle demonstrate that the new theory is correct.

Ralph F. Baierlein, Vacek Miglus

Dejian Zhang, Shuang Wu, Hong-Guo Li +3 more

In classical optics, Young's double-slit experiment with colored coherent light gives rise to individual interference fringes for each light frequency, referring to single-photon interference. However, two-photon double-slit interference has been widely studied only for wavelength-degenerate biphoton, known as subwavelength quantum lithography. In this work, we report double-slit interference experiments with two-color biphoton. Different from the degenerate case, the experimental results depend on the measurement methods. From a two-axis coincidence measurement pattern we can extract complete interference information about two colors. The conceptual model provides an intuitional picture of the in-phase and out-of-phase photon correlations and a complete quantum understanding about the which-path information of two colored photons.

Siddhant Das, Dirk-André Deckert, Leopold Kellers +2 more