Collision of two small particles

In summary, quantum mechanical particles, such as electrons, can exhibit properties of both particles and waves. However, their behavior when interacting with each other is dependent on their quantum numbers and the Pauli principle, making it unlikely for two electrons to have a collision. While they can scatter off each other, they cannot occupy the same space at the same time due to their repulsion.
  • #1
kevin0960
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People say the small particle such as electron has a property that the wave has. But isn't that if particle acts like a wave, isn't it impossible to have a collision between two particles?

Because when two different waves meet together, it just go through each other without having an any effect each other.
 
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  • #2
Depends on what you mean by 'collision'. Two electrons will definitely scatter off each other, just like classical particles, albeit not with the well-defined trajectories classical particles have.

Two quantum mechanical particles can be in the same place at the same time, if they don't repel each other (e.g. the electron in an atom can be located at the nucleus). But since two electrons repel each other the probability of observing two electrons in the same spot at the same time is zero. (Depending on their quantum numbers, the Pauli principle may prohibit this as well)
 

1. What is the definition of a collision of two small particles?

A collision of two small particles refers to the moment when two small particles come into contact with each other and exchange energy and/or momentum.

2. What factors affect the outcome of a collision between two small particles?

The outcome of a collision between two small particles can be affected by factors such as the mass, velocity, and angle of collision of the particles, as well as any external forces acting on them.

3. How do the laws of conservation of energy and momentum apply to collisions of two small particles?

The laws of conservation of energy and momentum state that in a closed system, the total energy and momentum before a collision must be equal to the total energy and momentum after the collision. This applies to collisions of two small particles, where the sum of their energy and momentum before the collision must be equal to the sum after the collision.

4. Can the collision between two small particles be perfectly elastic?

Yes, a collision between two small particles can be perfectly elastic if the total kinetic energy of the particles before the collision is equal to the total kinetic energy after the collision. In this case, there is no loss of energy, and the particles bounce off each other without any deformation.

5. How are collisions between two small particles observed and studied in scientific research?

Collisions between two small particles can be observed and studied in scientific research using various methods such as high-speed cameras, particle accelerators, or computer simulations. These techniques allow scientists to analyze the behavior and interactions of particles during collisions and gather data for further analysis and understanding.

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