Central Ideas
What are the two types of strings?
Open and closed
What did M-theory accomplish?
It combined the five main, flawed theories.
What are the matter particles?
fermions
True or False?
Supersymmetry states that particles in certain classes have similar properties with particles in other classes
True
What will string theory unify? (think forces)
gravity, electromagnetism, strong force, and weak force
How were theories IIA and IIB created?
Mirror symmetry
What are the interaction particles?
bosons
How many dimensions does supersymmetry eliminate from string theory?
16
Why does string theory require more dimensions?
There isn't enough "room" for the strings to vibrate with the four current dimensions.
How many spatial and time dimensions does M-Theory require?
10 spatial and 1 time dimensions are need in M-Theory
What fixed the issues of the first string theory?
supersymmetry
Which particles with imaginary mass does supersymmetry stop from forming?
Tachyons
What is a brane?
Branes are objects that can travel through many dimensions.
Who thought of M-Theory?
Edward Witten
What is the main reason that string theory is born?
To solve gravity
What does a string do to a circle in the concept of T-duality?
Wraps around it.
What are the theorized dimensions folded in?
A Calabi Yau manifold.
Name two differences between the five main theories?
The type of string used, the direction of vibrations, the symmetry/asymmetry, and the type of branes the open strings are attached to.
What type of interactions does string theory incorporate?
gradual
Does supersymmetry apply for spin values?