Multiverses: should there be a matter anti-matter imbalance in any of them

[FrumiousBandersnatch]

You are still not understand that I am mentally handicapped and that this discussion is difficult for me. I repeat that I have difficulties to read long text.

Yes, I remember you mentioned it. It is unfortunate.

That still leaves open the question if there is a maximum size such a density fluctuation could have.

I couldn't really say - I only have a rough grasp of the topic - I'm not a cosmologist.

 

[LaraLara]

I only have a rough grasp of the topic - I'm not a cosmologist.

You are doing much better than me so I assumed you where one

But to make my problem more clear: extrapolating from the loss in my memory I lost 50 IQ points and I do not even know what side of the road to drive on. As I can not read true books anymore I live on an ever more dwindling knowledge accumulated in the past. Means I get more ignorant every day. I somehow find that the jumpy way of the forum helps me concentrate.

 

[essentialsaltes]

I thank you very much for taking the time to explain this to me. I generally only learn things when the come in a form that interests me (f.e. is there design or not). Math did only find a way in my head when I got interested in economics.

What was the violation of the rule? That antimatter decays slower or something like that?

Something like that. It's hard to describe easily, but in the case of the neutral kaon, it was found that it lived longer than expected. The crucial experiment was done by Fitch and Cronin.

Is there a theoretical explanation why this violation exist?

There is. It depends on the fact that there are 6 flavors of quark: 3 'families' of two quarks each.

up and down
charm and strange
top and bottom

The names are just convenient labels, although the strange quark was named because it was something of another surprise.

When a strange quark decays, it might be the case that it always turns into a down. And every charm quark always decays into a top. But that's not the case. The three families 'mix together' when they decay with different probabilities. If you assemble all the probabilities of one family decaying into another, that builds up a 3x3 matrix of possibilities, the Kobayashi-Maskawa Matrix.

If the 3x3 matrix has all real values, then CP is conserved.
But if there are complex values, then CP is violated (since this is quantum mechanics, complex numbers enter into the picture).

So this is the theoretical basis for CP violation. It might be the case that the actual numbers are all real and CP is not violated, but when we measure them experimentally, we find that some of them are indeed imaginary, so experimentally, we determine that CP is violated. CP violation is *allowed* by theory, but it takes the experiment to verify whether it actually is or not.

 

[Strathos]

Just watch out for when the Anti-Monitor starts spreading the antimatter from his universe across the multiverse to destroy it[/nerdreference]

 

[timewerx]

I am the queen of spelling errors

I noticed! I usually see something that I wrote already and then I take a second look and noticed I haven't. If I"m not carefull, I'll have so many missing words in my posts!

The uncanny thing about the time loop was that I thought I caused it. I believed that I would make an error in the future that causes very big harm to my family and for this reason I would travell back in time to my childhood to undo the events.

Sorry to hear. It's possible to send messages/instructions back to the past but I don't know if it's possible to undo a past event.

But because my memorys would be set back I would repeat the error again.

Then your instructions should also contain instructions that your past self would still have to deliver the same message back in time, some time in her future -- even if the unfortunate event never happened....

This way, you always receive a warning in the infinite time loop even if nothing bad ever happens in the future. (of course, consciously, you only go through the infinite time loop once)

Now the problem is that I was part of something that caused very big harm to my family (I could not have foreseen it but I was nevertheless part of the cause). The atheist might now say drama happens in every family so there is nothing to fret but the drama is of a size that I have not seen anywhere else.

Sorry to what happened but you should stop blaming yourself for it. Things just happen and we live in a big bad world, bad things will happen if not already. It's not your fault.

 

[LaraLara]

CP violation is *allowed* by theory, but it takes the experiment to verify whether it actually is or not.

Thanks, the imbalance realy startled me when I was a child and I come from a non religious household. I found the "non-solved problem list" from wikipedia quiet helpfull.

However in the example of the spontanous photon decay/unification theory I was quiet unhappy that someone constructed a non-falsifiable theory (no matter when the proton decayed it would always confirm the theory). I was curious to know if something similar is happening here and in general I would like to know how often it happens in physiqus. I will need to look into this other explanations of matter imbalance one day but I started to many subjects.