New answers tagged cosmological-constant
This is really a comment, but it got a bit long for the comment box. It's a comment because I kept meaning to go off and research this properly but have failed to find the time (and probably never will). So I'll post my initial thoughts, but treat this as suggestions for things to look at rather than a definitive answer. When you say I also understand that ...
A positive cosmological constant leads to positive scalar curvature by definition. Just trace over the Einstein equation and you end up with $$ R = 4\Lambda - 8\pi T $$ which is just $$ R = 4\Lambda > 0 $$ in vacuum. The implicit, but more interesting questions are probably the following ones: Why can we interpret the cosmological constant as dark ...
The first one is regularized the second one isn't.
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