Relativistic angular momentum
![](/Images/godic/202412/21/GPB_circling_earth1544.jpg")
![The 3-angular momentum as a bivector (plane element) and axial vector, of a particle of mass m with instantaneous 3-position x and 3-momentum p.](/Images/godic/202412/21/Angular_momentum_bivector_and_pseudovector.svg1544.png")
- "Angular momentum tensor" redirects to here.
In physics, relativistic angular momentum refers to the mathematical formalisms and physical concepts that define angular momentum in special relativity (SR) and general relativity (GR). The relativistic quantity is subtly different from the three-dimensional quantity in classical mechanics.