Creation of our universe from zero energy?

[entropy1]

If the creation of our universe went alongside with creation of a second universe wherein each particle in our universe had a counterpart particle in it with opposite momentum, could those universes (our+second one) be created from zero energy?

 

[DaveC426913]

There have been hypotheses proposed in which the universe popped into existence from a quantum fluctuation - like a virtual particle/antiparticle pair spontaneously appearing.

 

[jim mcnamara]

@entropy1 I'm confused - are you saying there must be more Universes, not just one? Or are you asking could there be two or more?

 

[entropy1]

@entropy1 I'm confused - are you saying there must be more Universes, not just one? Or are you asking could there be two or more?

Let's say that I pose a mirror-universe that started off as the mirror image (wrt momenta of particles) of ours. Like a pair of universes. Of course there could be any number of different universes besides that. But my point is our universe (pair). I suspect that the creation of two particles that have opposite momentum can be created with zero energy, but I'm not sure.

 

[Bandersnatch]

I suspect that the creation of two particles that have opposite momentum can be created with zero energy, but I'm not sure.

Why in the world would you suspect that? Do you see oppositely charging elephants popping up all around you?

 

[entropy1]

Why in the world would you suspect that? Do you see oppositely charging elephants popping up all around you?

Ok. That was very dumb of me I suppose...

 

[Torbert]

Ok. That was very dumb of me I suppose...

The energy has to come from somewhere, although your idea is correct, virtual particles appear as oppositely charged pairs in our current universe. If a virtual particle big bang is your belief then an equal antimatter universe is pretty much a given.
Plus I do believe the Elephants have been shown to be standing on Turtles, not running away.

 

[PeterDonis]

the creation of two particles that have opposite momentum can be created with zero energy

This is not possible. Anything that has momentum must also have energy.

 

[PeterDonis]

@entropy1 as @DaveC426913 mentioned in post #2, there are hypotheses in the literature more or less along the general lines you refer to. PF discussion should be based on one of those hypotheses in the literature. Trying to construct your own hypothesis without being intimately familiar with what is already in the literature (a) is not likely to be fruitful, and (b) runs afoul of PF's policy against personal speculation.

If you can find a particular hypothesis in the literature that you have questions about, feel free to open a new thread on that. This thread is closed.