Nuclear Physics Simulation Apps

Radioactive Decay Model:
This model simulates the decay of a radioactive sample using discrete random events. It displays the number of radioactive nuclei as a function of time.

Two State Nuclear Decay:
This model simulates the radioactive decay of atomic nuclei into other nuclei. In this model, the resultant nuclei are stable and there are no intermediate decay states.

Three State Nuclear Decay:
This model simulates the radioactive decay of atomic nuclei in which the parent nucleus first decays into an intermediate state before decaying into a stable state.

Photoelectric Effect Model:
The Photoelectric Effect model simulates the Photoelectric effect discovered by Hertz in 1887 and described theoretically by Einstein in 1905.

Bell Gedanken Experiment Model:
The Bell Gedanken Experiment Model implements a simple 3D representation of Bell's adaptation of the Einstein-Podolsky-Rosen apparatus.

Bell Local Realistic Spin Model:
This model implements a vector representation of the adhoc Classical, Local and Realistic, version of two Spin 1/2 particles in a singlet state, as described by John S. Bell

Wheeler's Delayed Choice Model:
This simulator implements the Wheeler's Delayed Choice Experiment in an ideal Interferometer of Mach-Zehnder type, as desccribed by J.A. Wheeler and W.H. Zurek

Compton Effect:
This model simulates the the scattering of light off of an electron, the Compton effect. Compton used the idea that light behaves like a particle to explain light-electron scattering.

3D Hydrogen Probability Densitites:
The 3-D Hydrogen Atom Probability Densitites model 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

Einstein Solid Model:
In this model, each atom is viewed as three independent, one-dimensional quantum harmonic oscillators. Each oscillator can contain an amount of energy above the ground state.

X-Ray Spectrum Model:
TheX-Ray Spectrum Model shows the effect of varying the high voltage (kVp), added filtration and ripple in the high voltage supply to the X-ray tube.

Lennard-Jones Potential Model:
The EJS Lennard-Jones Potential model shows the dynamics of a particle of mass m within this potential. You can drag particle to change its position and you can drag the energy-line. .

Classical Helium Model:
This Model is an example of a three-body problem that is similar to the gravitational three-body problem of a heavy sun and two light planets.

Molecular Dynamics Data Model:
The Molecular Dynamics Replicated Data Model implements a parallel computer program that uses a 3D Lennard-Jones potential truncated at a distance of three molecular diameters.

Quantum Zeno Effect Model:
The Quantum Zeno Effect Model implements a series of ideal polarizors and rotors, as described by Paul G. Kwiat. The simulator is based on some of the basic fundamental ideas of Quantum Mechanics.

QM Carpet Program:
The QM Carpet program displays the time evolution of the position-space wave function and the associated quantum-mechanical spacetime diagram, the quantum carpet. The default wave function is a Gaussian wave packet in an infinite square well.

QM Projection Program:
The QM Projection program displays the time evolution of the position-space wave function calculated by projecting an initial wave function into the known Hilbert space of energy eigenfunctions, determining expansion coefficients, and then calculating the energy eigenfunction superposition.

QM Superposition Program:
The QM Superposition program displays the time evolution of the position-space wave function. The default wave function shows a two-state superposition of harmonic oscillator states. .