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Summary
DescriptionParticles in a box02.jpg
English: Particles in a box - Fig.1 Left: only one particle; usually the small box is empty. However, there is a certain chance of that the particle is in the box. This chance is given by Eq.(15). Middle: a few particles. There are usually some particles in the box. We can define an average, but the actual number of particles in the box has large fluctuations around this average. Right: large number of particles. The fluctuations around the average are small.
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