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Looking Inside a Black Hole
Alexander R. H. Smith, Robert B. Mann
The cosmic censorship conjecture posits that singularities forming to the future of a regular Cauchy surface are hidden by an event horizon. Consequently any topological structures…
Dynamical Emergence of Universal Horizons during the formation of Black Holes
Mehdi Saravani, Niayesh Afshordi, Robert B. Mann
Motivations for the existence of a fundamental preferred frame range from pure phenomenology to attempts to solve the non-renormalizability of quantum gravity, the problem of time…
On the Existence and Utility of Rigid Quasilocal Frames
Richard J. Epp, Robert B. Mann, Paul L. McGrath
The notion of a rigid quasilocal frame (RQF) provides a geometrically natural way to define a system in general relativity, and a new way to analyze the problem of motion. An RQF i…
Unruh Effect under Non-equilibrium conditions: Oscillatory motion of an Unruh-DeWitt detector
Jason Doukas, Shih-Yuin Lin, B. L. Hu +1
The Unruh effect refers to the thermal fluctuations a detector experiences while undergoing linear motion with uniform acceleration in a Minkowski vacuum. This thermality can be de…
Momentum in General Relativity: Local versus Quasilocal Conservation Laws
Richard J. Epp, Paul L. McGrath, Robert B. Mann
We construct a general relativistic conservation law for linear and angular momentum for matter and gravitational fields in a finite volume of space that does not rely on any space…
The 4-Body Problem in a (1+1)-Dimensional Self-Gravitating System
Andrew Laurtizen, Peter Gustainis, Robert B. Mann
We report on the results of a study of the motion of a four particle non-relativistic one-dimensional self-gravitating system. We show that the system can be visualized in terms of…