Virtual Quantum Lab

The Psiket Virtual Quantum Lab is an interactive environment for performing the foundational experiments of quantum physics. All results are computed from exact physical relations and reference fundamental constants, and can be observed and analysed in 2D, 3D and virtual reality.

Available experiments: Double slit and photoelectric
Display modes: 2D, 3D and VR
Computational basis: Physical laws and CODATA
Access: Browser-based, no install

Enter the lab Explore the experiments

The lab environment running Young's double-slit experiment in wave mode

Experiments

Laboratory experiments

The first release offers two historic, foundational experiments of quantum physics. Each includes a theoretical guide, analytical outputs and dedicated learning missions.

Young's double-slit experiment

Coherent light or single particles pass through two narrow slits and are recorded on a screen. Users observe the interference pattern in the wave picture, then follow the gradual formation of the same pattern from individual photon or electron impacts, and examine how a which-path detector makes the interference disappear.

Learning objectives

Relate fringe spacing to wavelength, slit separation and screen distance
Observe how slit width shapes the diffraction envelope and suppresses orders
Watch the interference pattern build up from single-particle impacts
Examine how measuring the particle's path destroys interference

Governing relation: $d sin θ = mλ$
Experiment modes: Wave, single photon and single electron

Start experiment

2D view of the photoelectric experiment: ultraviolet light on the cathode, electrons travelling to the anode and the current on the ammeter

The photoelectric effect

Monochromatic light illuminates the cathode of a vacuum tube and the current of emitted electrons is measured. By choosing one of six metals, varying the wavelength and optical power and setting the anode voltage, users determine the emission threshold and stopping voltage, and measure Planck's constant and the work function by fitting their recorded data.

Learning objectives

Determine the threshold frequency and wavelength for different metals
Verify that the stopping voltage is independent of light intensity
Observe the linear relation between maximum kinetic energy and frequency
Measure Planck's constant by linear fitting of experimental data

Governing relation: $K_{m a x} = h f - φ$
Experiment modes: Six reference metals, I–V curve and data logging

Start experiment

The environment

Inside the lab

The images below were captured directly from the lab environment and show the actual simulation output under different experimental conditions.

Single-electron impacts on the screen and the impact histogram compared with the theoretical probability in the double-slit experiment

An interference pattern built from individual impacts

In particle mode electrons are emitted one at a time, and each impact position is drawn from the quantum probability distribution. As impacts accumulate, the histogram converges to the theoretical prediction.

Each particle recorded independently from the |ψ|² distribution
Impact histogram compared live with the theoretical curve
Direct comparison of observer-on and observer-off regimes

3D view of the double-slit bench with the electron gun, slit plate, which-path detector and detection screen

3D and virtual reality

Besides the analytical 2D view, every experiment can be explored in a 3D scene. Users with a compatible headset can enter virtual reality and run the experiment from a floating control panel.

Compatible with the WebXR standard and common headsets
Floating control panel operated by controller pointers
Walk and turn freely inside the lab space

Scientific credibility

Scientific validation

The lab's outputs have been checked against reference values and the results of well-known experiments.

3.547 mm
Fringe spacing (λ = 532 nm): 5.355 pm
Electron wavelength (50 kV): 543.8 nm
Sodium threshold wavelength: 6.626 × 10⁻³⁴ J·s
Planck's constant from fit

Capabilities

The lab is designed to serve both independent study and classroom teaching.

Accurate physics

Patterns and charts are computed from the governing equations and reference constants, and the validity range of every approximation is shown in the outputs.

Particle-by-particle simulation

In particle mode each particle is recorded independently according to the quantum probability distribution, so the statistical formation of the pattern is visible.

2D and 3D views

A 2D view supports precise analysis, while the 3D view conveys the real arrangement of the equipment.

Virtual reality support

The lab supports the WebXR standard and runs in headset browsers without installing any software.

Data logging and analysis

Measurements are recorded in a data table, can be exported as CSV, and are fitted linearly automatically.

Learning missions

A set of targeted missions guides users step by step to the key phenomena of each experiment.

Users

Who the lab is for

The lab serves several educational levels, and its analytical depth can be matched to the learner's needs.

High-school students: A tangible introduction to modern physics in the curriculum, including the photoelectric effect, interference of light and the dual nature of particles.
University students: Quantitative analysis of the experiments, comparison with theory and measurements such as determining Planck's constant.
Teachers: A tool for live classroom demonstrations and for designing lab exercises without physical equipment.

Getting started

How to use the lab

Every experiment follows four simple steps.

1
Select an experiment
After entering the lab, choose an experiment from the list.
2
Set the parameters
Use the numbered controls to configure the source, geometry and conditions.
3
Observe the results
Follow the changes on the bench, the screen and the analysis charts at once.
4
Analyse and assess
Record and analyse data, and track your progress by completing the missions.

Start experimenting

The Virtual Quantum Lab is available without registration or installation. For a structured study of quantum concepts, you can also take Psiket's courses.

Enter the lab View courses