How would someone discover the Einstein-Hilbert Action?
Posted by Álvaro Rodrigo, at physics.stackexchange.com,
Usually in textbooks or on online resources, when you are learning General Relativity, propose the following: $$ \mathcal S[g_{\m…
Usually in textbooks or on online resources, when you are learning General Relativity, propose the following: $$ \mathcal S[g_{\m…
When we try to construct a covariant derivative, we impose several conditions on it so that the resulting derivative is unique.
I have a hard time understand the statement that When you only look at the classical limit or classical physics…
Can general relativity be completely described as a field in a flat space? Can it be done already now or requires advances in…