How do I simulate a wavefunction collapse?

Open this page and use the live Particle in a Box tool below — set your inputs and the simulation runs instantly in your browser using real numerics. No install, no account needed.

Yes. The simulation runs free in your browser. A one-time unlock or a Pro plan adds advanced parameters, saved presets, data import, and clean exports.

Can I use my own numbers?

Absolutely — every input is adjustable, and with data import you can drive a wavefunction collapse from your own measurements.

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Particle in a Box for a wavefunction collapse

Simulate a wavefunction collapse live in your browser. This runs the real Particle in a Box solver — adjust the inputs, watch it respond instantly, and export the result. No install, no account.

For:Students Researchers Educators Engineers Hobbyists & Makers K-12 Students First Responders

Particle in a BoxLive

quantized energy levels

Controls

Presets

Quantum number n

Well width L (nm)

Show probability density

Confine a quantum particle to a box and its energy can only take discrete values, E_n = n²h²/8mL². The wavefunctions are standing waves with n humps; squaring them gives the probability of finding the particle at each point. Narrowing the box pushes the energy levels dramatically higher — quantum confinement.

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Data Inspector

Energy Eₙ3.384 eV

Level n3

Nodes2

Governing equation

E_{3} = \frac{3 ^{2} h ^{2}}{8 m L ^{2}} = 3.384 eV, ψ_{3} = \frac{2}{L} sin \frac{3 π x}{L}, L = 1 nm

Reading this result: Level n=3 carries 2 interior nodes, and because energy scales as n² it sits 9× above the ground state of this same well.

Runs locally in your browser — free forever. Scale to the cloud when reality gets heavy.

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About this simulation

The full Particle in a Box tool models a wavefunction collapse with the same numerics engineers and scientists use — running entirely client-side. Change any parameter and the result updates in real time, so you can build intuition, check a design, or teach the concept without spreadsheets or installs.

More you can do with Particle in a Box

Particle in a Box for a hydrogen atom Particle in a Box for a quantum well Particle in a Box for a qubit Particle in a Box for the double-slit experiment Particle in a Box for a particle in a box Particle in a Box for a tunneling electron Particle in a Box for a spin measurement Particle in a Box for a laser cavity

Other ways to simulate a wavefunction collapse

Quantum Tunneling for a wavefunction collapse Bloch Sphere for a wavefunction collapse Hydrogen Orbitals for a wavefunction collapse Special Relativity for a wavefunction collapse Photoelectric Effect for a wavefunction collapse Quantum Harmonic Oscillator for a wavefunction collapse

Frequently asked questions

How do I simulate a wavefunction collapse?: Open this page and use the live Particle in a Box tool below — set your inputs and the simulation runs instantly in your browser using real numerics. No install, no account needed.
Is it free?: Yes. The simulation runs free in your browser. A one-time unlock or a Pro plan adds advanced parameters, saved presets, data import, and clean exports.
Can I use my own numbers?: Absolutely — every input is adjustable, and with data import you can drive a wavefunction collapse from your own measurements.