2 One state, two states, three states Consider the system of 2 2-state systems.

Question

2 One state, two states, three states Consider the system of 2 2-state systems. For example, two electrons, each with spin 1/2, or two particles in a box, where we only consider n = l or n = 2, The system is very warm cornpared to E, so all states are occupied equally. The state of each particle is measured. If the wording of this question remains confusing, look at question 3, which is a more general version of this question. 1. What the probability of finding the particles in the same state if they are fermions? 2. What the probability of finding the particles in the same state if they are bosons? 3. What the probability of finding the particles in the same state if they are distinguish- able?

Explanation / Answer

general version of the question is

what the probability of finding the particles in the same state if they are fermions?

because

fermions - leptons, baryons

bosons - photons, gravitons

distinguishable particles - classical particles.

In question they given electrons with spin 1/2 . Electron comer under fermions so option 1 is correct

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