Quantum Wave Interference - Quantum Mechanics | Electrons | Photons - PhET Interactive Simulations

When do photons, electrons, and atoms behave like particles and when do they behave like waves? Watch waves spread out and interfere as they pass through a double slit, then get detected on a screen as tiny dots. Use quantum detectors to explore how measurements change the waves and the patterns they produce on the screen.

En bref

Ajouté le

18 mars 2026

Matière et domaine

physics · quantum-mechanics

Niveaux scolaires

9e année (3e)–12e année (Terminale)

Type de page

Tool

Introduction

Quantum Wave Interference Simulation Overview

  • Core Subject: Quantum mechanics, specifically the wave-particle duality of electrons, photons, neutrons, and helium atoms.
  • Key Concept: Visualization of particles as wave packets that undergo collapse upon detection.
  • Experimental Focus: The double-slit experiment and its role in demonstrating the wave-like behavior of matter and light.
  • Learning Objectives:
    • Observe wave behavior between the slit and the screen.
    • Analyze the impact of detectors on wave functions and interference patterns.
    • Examine how variables like mass, speed, and wavelength alter interference patterns.
    • Understand the necessity of identical wavelengths for coherent light source interference.
    • Explore the vast range of size scales applicable to quantum interference.
  • Technical Requirements: Requires Java; compatible with PC, Mac, and Linux systems.

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