- #1
Junjie
- 2
- 0
I am a bit confused at "orthonormal tetrad" in General Relativity...
I think orthonormal tetrad should be a set of vectors like
e0= (1,0,0,0)
e1= (0,1,0,0)
e2= (0,0,1,0)
e3= (0,0,0,1)
However, in my book, it is written as
e0= (-1,0,0,0)
e1= (0,1,0,0)
e2= (0,0,1,0)
e3= (0,0,0,1)
I am not sure which one is right, and why it is right. My roomate think both are right, which makes me even more confused.
I think orthonormal tetrad should be a set of vectors like
e0= (1,0,0,0)
e1= (0,1,0,0)
e2= (0,0,1,0)
e3= (0,0,0,1)
However, in my book, it is written as
e0= (-1,0,0,0)
e1= (0,1,0,0)
e2= (0,0,1,0)
e3= (0,0,0,1)
I am not sure which one is right, and why it is right. My roomate think both are right, which makes me even more confused.