Single electron double slit experiment

The exhibits consist of a booth, LED screens, LED light columns, 6 light strips, colorful acrylic covers, buttons and observation devices, as well as a booth. Introduction to the knowledge of wave particle duality in screen loop playback during unmanned operation.. Before visitors arrives at the booth, they can press the "emission" button on the booth multiple times according to the operation prompts to emit electrons, and according to the screen prompts on the LED screen, emit the corresponding number of electrons. When the initial number of displayed electrons is low, its distribution is in a discrete state, and when the number of electrons increases, an interference fringe image is displayed. Subsequently, visitors can touch the "observation eye" or vertical observation device on the exhibit stand for observation. When visitors participates in the observation (interference) experiment, the photons will become two vertical lines and the interference fringes will disappear. After a certain period of time, the LED screen plays a video for explanation, allowing visitors to better understand the impact of "no observation" or "observation" on the experiment, deepening visitors' understanding of wave particle duality and quantum superposition states.

The unit is designed for unsupervised public use: controls are recessed or shielded, moving parts are enclosed, and the interface is operable by a child of about six with no instruction. Where a screen is used, the language can be switched without changing the hardware, and the content can be replaced on site.

One of the most famous experiments in physics is the double slit experiment. The double slit experiment is a type of "double path experiment". In the dual path experiment, microscopic objects such as photons or electrons can travel through two paths simultaneously or through any one of them, from the starting point to the final point, and their positions will be recorded on the detection screen at the end point, forming a striped interference pattern. In the double slit experiment, scientists can accurately predict the probability density of particles arriving at the detection screen, but quantum mechanics cannot predict at what time or at what position on the detection screen a particle will arrive, and it has been found that if there is an external observer, the behavior of the particle will undergo dramatic changes. In modern physics, the double slit experiment has demonstrated that particles exhibit classical defined wave and particle properties.