# Mathematical Explanation of One partice in two place

1. Dec 28, 2014

### Quarlep

Can you explain me mathematically one particle in many places.
Thanks

2. Dec 28, 2014

Staff Emeritus
No. Nobody can, because quantum mechanics does not predict this.

3. Dec 28, 2014

### Quarlep

How ?? I know that one particle can be many locations in quantum physics.

4. Dec 28, 2014

### jerromyjon

One particle is ever only measured in one location. Probability of where it can be measured is confined in QFT.

5. Dec 28, 2014

### samalkhaiat

Potentially (and that is important) the particle "can be in many locations" and this is know as the super-position principle $$| \Psi \rangle = \sum c_{ i } \ | x_{ i } \rangle .$$ Have you studied quantum mechanics?

6. Dec 28, 2014

Staff Emeritus
Well, you know wrongly. QM does not say this. If you have studied QM, you would know this. If you haven't, isn't it better to learn from those who have?

7. Dec 28, 2014

### Staff: Mentor

You may have been told that, or have read it in some non-serious popularization, but it is just not true. It is a misconception that is handed down from one generation of non-scientists to another.

8. Dec 28, 2014

Staff Emeritus
I think this is likely to be confusing.

9. Dec 28, 2014

### Staff: Mentor

Ya think? :)

For the original poster: Note that samalkhait said the particle "can be" in many locations, not "is". There are many locations that it can be in, but we will always find it in exactly one of them.

10. Dec 28, 2014

### Staff: Mentor

We can stop piling on now - the question has been answered.