
A Particle in a Box 1
In the previous example we have seen that quantum mechanics allows us to calculate the experimentally verifiable probabilities. In this post we will further build our theory by taking another simple example, and by considering the quantum mechanical description of that system. Let’s consider a particle trapped in a box. Its classical description comprises the position… Continue reading

Nature speaks linear algebra
In our previous post we considered a simple interferometric experiment and claimed that quantum mechanics can account for the experimentally observed detection probabilities in the interferometer. In this post we will see how it is done. The idea was to to attach complex amplitudes to all paths available to the photon. Mathematically it can be… Continue reading

What is quantum mechanics?
A photon approached a semitransparent mirror and asked “Will you let me pass through?”. The mirror kept silent for a minute and then replied “I don’t know. The god has not yet rolled the dice”. Quantum mechanics is a theory that allows us to calculate the probabilities of random events happening in the nature at… Continue reading