One form of this quantity may be modified to account for the effects of torsion via addition of the Nieh-Yan term.
One form of this quantity may be modified to account for the effects of torsion via addition of the Nieh-Yan term. Another form of this quantity is defined such that the area of a worldsheet has the property of Lorentz invariance. This quantity equals the tautological one-form of the Hamiltonian flow on a cotangent bundle. In general relativity, this quantity is proportional to the spacetime integral of the product of scalar curvature and the (*) square root of the negative determinant of the metric tensor. This quantity's derivative with respect to the generalized coordinates is zero by Hamilton's principle. In the path integral formalism, the weight of a trajectory is given by the exponential of this quantity times i over h-bar. For 10 points, name this quantity that equals the time integral of the Lagrangian
One form of this quantity may be modified to account for the effects of torsion via addition of the Nieh-Yan term.
action [prompt on "S"; accept specific examples, e.g. Einstein-Hilbert  action]