Two identical non-interacting particles

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In summary, "two identical non-interacting particles" refer to particles with the same properties that do not interact with each other. According to the Pauli exclusion principle, they cannot occupy the same space at the same time. In a quantum system, these particles behave independently and can exist in multiple states simultaneously. While not physically possible, there are real-world examples of particles that behave as if they are non-interacting. The study of these particles is important in understanding quantum mechanics and has practical applications in various fields.
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CaptainQuaser
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Two identical non-interacting particles are in an isotropic harmonic potential. Show that the degeneracies of the three lowest energy levels are:

a) 1, 12, 39 for spin 1/2 (aka fermi)

b)6, 27, 99 for spin 1 (aka bose)

The Attempt at a Solution



Well, I tried counting the states for [itex]E_{nl}[/itex], noting that no two fermi particles can be in the same state, but two bose particles can be, don't really know where do go from there.
 
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  • #2
Use S, L, and J.
For instance, S can be 0 or 2 for two spin one bosons with L=0.
This gives six states.
 

1. What is the meaning of "two identical non-interacting particles"?

"Two identical non-interacting particles" refers to a theoretical situation in which there are two particles that have the same properties, such as mass and charge, and do not interact with each other through any forces.

2. Can two identical non-interacting particles occupy the same space?

No, according to the Pauli exclusion principle, particles with the same quantum state cannot occupy the same space. Therefore, two identical non-interacting particles cannot occupy the same space at the same time.

3. How do two identical non-interacting particles behave in a quantum system?

In a quantum system, two identical non-interacting particles behave independently of each other and do not affect each other's properties or movements. This is known as the principle of superposition, where the particles can exist in multiple states simultaneously.

4. Are there any real-world examples of two identical non-interacting particles?

While it is not possible to have two identical particles in the same space, there are real-world examples of two particles that behave as if they are non-interacting. One example is the electrons in a superconductor, where they form pairs and move without resistance, essentially acting as non-interacting particles.

5. What is the significance of studying two identical non-interacting particles?

Studying two identical non-interacting particles is important in understanding the principles of quantum mechanics and how particles behave in certain systems. It also has practical applications in fields such as materials science and quantum computing.

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