Timeline for How to make sense of (electron) and (positron) creation from a single electromagnetic wave with a given energy through pair production?
Current License: CC BY-SA 3.0
5 events
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| Mar 6, 2017 at 17:25 | comment | added | wld.qtr | Yes, momentum and energy conservation were mentioned in the video and this what i meant by the right conditions (right energy level & external field) but I was interested in the particles them self and from where they originate, turns out from space. | |
| Mar 6, 2017 at 17:12 | comment | added | anna v | As the expectation value energy of the vacuum is zero, it has no meaning to say space is populated. Space can be populated if there are sources of fields , as the nucleus above. | |
| Mar 6, 2017 at 17:07 | comment | added | anna v | They are not appearing and disappearing as real particles, only virtual ones . i.e. mathematical constructs. They cannot be real because of the energy momentum rules. The" right conditions" mean a field with which the photon can interact in order to keep the energy momentum balances. imposed by special relativity. The video at best is misleading. It is not only the heisenberg uncertainty that constrains , but also momentum and energy conservation as I have explained. The particles can become real only if fed by an external field which will conserve momentum. | |
| Mar 6, 2017 at 16:38 | comment | added | wld.qtr | According to this other video the matter & anti-matter are actually appearing and disappearing all the time and when a photon with the right condition interact with them they scatter and don't disappear as they usually do. So I guess light has nothing to do with the creation of matter & anti-mater but space are. | |
| Mar 6, 2017 at 16:01 | history | answered | anna v | CC BY-SA 3.0 |