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Monday, January 15, 2024

Exploring Hydrogen Atom Probability Densities in 3D with JavaScript and EJSS



Exploring Hydrogen Atom Probability Densities in 3D with JavaScript and EJSS

Understanding the behavior of electrons in an atom is crucial to comprehend the intricacies of quantum mechanics. In this blog post, we delve into a fascinating JavaScript simulation that vividly illustrates the probability densities of Hydrogen atom energy eigenstates in 3D. Developed by Jose Ignacio Fernández Palop from the University of Cordoba, Spain, and remixed by lookang, this simulation serves as an educational tool for teaching quantum mechanics.


Overview

The program simulates the probability density of the first few energy eigenstates (n = 1, 2, and 3) for the Hydrogen atom, considering the Coulomb potential. The main window provides an energy level diagram showcasing solutions to the Coulomb potential in two dimensions. Users can select states either through a dropdown menu or by interacting with the energy level diagram. Clicking on a dark green level with specific n, l, and m values turns it bright green, altering the state shown in the 2D and/or 3D visualization panel window. After color scheme is added, the highlight follows the visualization color selected.

Visualization

The probability density is represented by a 3D cloud, where a brighter sphere signifies higher probability. This immersive visualization helps users grasp the spatial distribution of electron probability within the atom. The 2D and 3D views provide different perspectives, allowing for a comprehensive exploration of the atom's behavior.


Controls


  1. State Drop Down Menu:*Easily change the state depicted by selecting from the dropdown menu.
  2. 3D View Checkbox: Toggle to view the X Y Z dimensions, providing a holistic visualization of the atom's probability distribution. Projection is selectable to allow better view such as ["PERSPECTIVE_ON","PLANAR_XY","PLANAR_XZ","PLANAR_YZ","PERSPECTIVE_OFF"]
  3. Energy Level Checkbox: Display the energy level diagram, aiding in understanding the relationship between energy levels and quantum states.


Educational Significance

This simulation, forming part of a suite by Fernández Palop, enriches the teaching of quantum mechanics. The interactive nature of the visualization fosters a deeper understanding of abstract quantum concepts, making it an invaluable resource for students and educators alike.


 Conclusion

The Hydrogen Atom Probability Density simulation in 3D, powered by JavaScript and EJSS, offers a captivating journey into the quantum realm. Its intuitive controls, coupled with immersive visualizations, make it an effective tool for unraveling the mysteries of atomic behavior. Whether you're a quantum physics enthusiast or an educator seeking engaging teaching aids, this simulation proves to be an illuminating exploration into the world of quantum mechanics. Experience it firsthand and witness the dance of electrons within the three-dimensional confines of the Hydrogen atom.


Reference:

 https://www.uco.es/hbarra/index.php/fc/appletsfc

write up 2:

Hydrogen Atom Probability Densities in 3D

General Description

This program simulates the probability density of the first few (n = 1, 2, and 3, and associated l and m values) energy eigenstates for the Hydrogen atom (the Coulomb potential). The main window shows the energy level diagram for the solutions to the Coulomb potential in three dimensions. States may be selected either by using the dropdown menu item or by using the energy level diagram and clicking a dark green level, with specific n, l, and m values) which will turn bright green and change the state shown in the 2d and/or 3d visualization panel window. The probability is shown with a 3d cloud, with higher probability shown as a brighter sphere. This simulation is part of a suite of simulations by Jose Ignacio Fernández Palop of the University of Cordoba, Spain used to teach quantum mechanics. Additional simulations can be found on the OSP ComPADRE site. This JavaScript version is remixed by lookang.

Controls

  • State Drop Down Menu: Changes the state depicted
  • 2D View Checkbox: Shows the Y Z Plane of the atom
  • 3D View Checkbox: Shows the X Y Z view of the atom
  • Energy Level Checkbox: Shows the energy level diagram

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