2013/10/28 by M. O. Katanaev
Physics and Astronomy · #Black Holes and Theoretical Physics #Bridge (graph theory) #Classical mechanics #Degrees of freedom (physics and chemistry) #Einstein #Experimental and Theoretical Physics Studies #Gauge (firearms) #Geodesic #Mathematical analysis #Mathematical physics #Noncommutative and Quantum Gravity Theories #Physics #Quantum mechanics #Spacetime #Test particle #Theoretical physics #gr-qc
paper · pdf · doi:10.1142/s0217732314500904
6 pages, 2 figures
arxiv created 2013/10/28 · openalex publication_date 2014/05/19 · arxiv updated 2015/06/17 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05
A test particle moving along geodesic line in a spacetime has three physical propagating degrees of freedom and one unphysical gauge degree. We relax the requirement of geodesic completeness of a spacetime. Instead, we require test particles trajectories to be smooth and complete only for physical degrees of freedom. Test particles trajectories for Einstein–Rosen bridge are proved to be smooth and complete in the physical sector, and particles can freely penetrate the bridge in both directions.