Small Qubit Tool

Warning: no tutorial for now. You will not probably understand what is going on unless you know already a bit of quantum physics.

This is small tool which can be used to show the behaviour of qubits and some quantum-like effects. Each square is a qubit which can be measured in a discrete set of basis. Each basis is a set of two colors represented on the color wheel. Measure is done by clicking on a square the probability of measure are given on the top-left corner. Decoherence is also integrated by a loss of saturation over time.

Apart from basic measure, this tool can be used to show the Quantum Zeno effect (https://en.wikipedia.org/wiki/Quantum_Zeno_effect). Indeed, you can set a decoherence time and constantly measure a given square to show that measuring constantly a quantum object will make it persist in the same state, while letting it evolve a bit and measuring it will change it.

You can also use the prepare setup button. It will prepare all the square in the same color, you can perform a rotation of the whole sample by changing gradually the basis of measure and measuring constantly. Compare it to a measure in the incompatible basis to show we can do operation on the whole sample while keeping the correlation of it.