- #1
rodsika
- 279
- 2
Branes are confusing subject. Branes are objects. Yet Branes are also Spacetime. But how could that be. General Relativity says geometry is not physical, but just math relationship. Now how could Branes itself be spacetime when Branes are objects like strings?
http://universe-review.ca/R15-18-string.htm says:
"D-branes - A D-brane is a submanifold of space-time with the property that open strings can end or begin on it. Strings can have various kinds of boundary conditions. For example closed strings have periodic boundary conditions (the string comes back onto itself)."
and
"Branes are not merely places; they are also objects that possesses finite tension and carry charges. Thus, they can be distorted and can interact with other charged objects and gravitational field"
Branes are supposed to be submanifold of spacetime. But spacetime is just an abstract mathematical idea, how could branes or spacetime submanifold contain charges?!
http://universe-review.ca/R15-18-string.htm says:
"D-branes - A D-brane is a submanifold of space-time with the property that open strings can end or begin on it. Strings can have various kinds of boundary conditions. For example closed strings have periodic boundary conditions (the string comes back onto itself)."
and
"Branes are not merely places; they are also objects that possesses finite tension and carry charges. Thus, they can be distorted and can interact with other charged objects and gravitational field"
Branes are supposed to be submanifold of spacetime. But spacetime is just an abstract mathematical idea, how could branes or spacetime submanifold contain charges?!