Hello forum! I would like to begin by stating that I am no expert in general relativity, nor in physics or mathematics, although I have some basic understanding of calculus and linear algebra. So if you can keep the math simple, I would appreciate. Also, please correct me if I'm wrong. As I understand so far, tensors are used to describe the curvature of spacetime due to the presence of mass. But this would imply that quantum effects are taking place on a manifold. My question is the following : Could tensors be used to describe the direction of quantum interactions on a macroscopic scale without the need of a spacetime with it's own geometry in the background? Thank you for your time. P.S : If this is in the wrong sub-forum and should be in ''Quantum Physics'', I apologize.