[Starman]

Is an anti matter dimension possible within the current string theory? Are there any dangers to our dimension or both in opening a gateway to that kind of dimension?

[Capuchin]

Antimatter exists in this "dimension"... I'm not entirely sure where you're going with this.

If vast quantities of antimatter got into the part of our universe where there's an abundancy of matter, then yes, we would all sauté in warm gamma radiation.

[Starman]

antimatter exists in this "dimension"....i'm not entirely sure where you're going with this.

If vast quantities of antimatter got into the part of our universe where there's an abundancy of matter, then yes, we would all sauté in warm gamma radiation.

Yes, I know there is antimatter in our universe.
I was thinking about the possibility of an accidental rift or gateway into a totally antimatter universe causing a violent surge into our universe. An explosive admixture and if this scenario is theoretically possible within the string theory parameters.

[Capuchin]

The theory derived from trying to merge all the string theories into a single theory is M-theory. This often has an added concept of membranes moving in a higher-dimensional space. Maybe one of these membranes colliding with ours caused the big bang.

Under this theory, I don't see any problem with there being another membrane that is mostly antimatter. If M-theory proves to be a solid model of the universe, if we ever manage to get anything predictable out of it, we might be able to find a way to connect the membranes.

However I wouldn't recommend dwelling on it. Even if M-theory is proven correct in our lifetimes, or another theory comes along that predicts alternate branes within this universe, the technology to join 2 branes somehow is a little out of our reach.

There are plenty of theories out there, string theory really is only slightly better than the rest of them. The media seems to have put some huge emphasis on string theory to be the ultimate theory of our universe, but it's very early stage. Might be complete codswallop. It's far too early for the answer of your question to be at all meaningful. It's like you making up a theory to do with where the odd socks go when they go missing and then saying "under the current parameters of p-sock-theory, is it possible for the sock universe to be ruled by a species of sock-weilding ruffians?".

Your question seems a little strange and out there. Maybe asking if string theory can help to address the many thousands of unanswered questions we have of this world would be a better question, rather than seeing if it predicts something that we have not observed to be possible.

Please excuse my rant. These theories just are not well grounded enough yet to even worry about whether they can predict these sorts of events.

[Starman]

The theory derived from trying to merge all the string theories into a single theory is M-theory. This often has an added concept of membranes moving in a higher-dimensional space. Maybe one of these membranes colliding with ours caused the big bang.

Under this theory, I don't see any problem with there being another membrane that is mostly antimatter. If M-theory proves to be a solid model of the universe, if we ever manage to get anything predictable out of it, we might be able to find a way to connect the membranes.

However I wouldnt recommend dwelling on it. Even if M-theory is proven correct in our lifetimes, or another theory comes along that predicts alternate branes within this universe, the technology to join 2 branes somehow is a little out of our reach.

There are plenty of theories out there, string theory really is only slightly better than the rest of them. The media seems to have put some huge emphasis on string theory to be the ultimate theory of our universe, but it's very early stage. Might be complete codswallop. It's far too early for the answer of your question to be at all meaningful. It's like you making up a theory to do with where the odd socks go when they go missing and then saying "under the current parameters of p-sock-theory, is it possible for the sock universe to be ruled by a species of sock-weilding ruffians?".

Your question seems a little strange and out there. Maybe asking if string theory can help to address the many thousands of unanswered questions we have of this world would be a better question, rather than seeing if it predicts something that we have not observed to be possible.

Please excuse my rant. These theories just are not well grounded enough yet to even worry about whether they can predict these sorts of events.

Thanks for your answer.
My question isn't based on worry. I am aware that it's all as yet unproven.
The question is for fiction writing purposes.

[Capuchin]

Why are you so worried about scientific basis if it is fiction? ;)