8 ms·
> It is a force observed which is an artifact of your reference frame. So it is not a force then! A force is an action at a distance between two masses. This i
by nyc111 8y ago
> It is a force observed which is an artifact of your reference frame.
So it is not a force then! A force is an action at a distance between two masses. This is what I'm trying to say. Maldacena is using the word force in the context of GR but we do not know what he means by that word.
- nyrikki 8y agoCorrect, in GR gravity is not a force between masses but an effect of the warping of space and time in the presence of mass. That said, Using the concept of "Gravity" as a "force" is very useful in the special or limited cases. In fact it may be the only way to model some problems where one can't find an exact solution to the EFEs. The concept is invaluable as a tool for visualization. Most of us cannot visualize the non-euclidean impacts of the Ricci tensor or the Weyl terms. I should warn than in QM the notion of "force" is based on operators and not variables and the stricter Newtonian definition is going to run into problems.