255 citations
- Universidad de CádizES12 papers
- Max Planck Institute for Solid State ResearchDE11 papers
- Landau Institute for Theoretical PhysicsRU9 papers
- University of British ColumbiaCA7 papers
- University of AlbertaCA6 papers
- Czech Academy of SciencesCZ5 papers
- FZU ‒ Institute of Physics of the Academy of Sciences of the Czech RepublicCZ5 papers
- University at Buffalo, State University of New YorkUS5 papers
- University of VictoriaCA5 papers
- Charles UniversityCZ4 papers
- Commissariat à l'Énergie Atomique et aux Énergies AlternativesFR4 papers
- Institute for Advanced Studies in Basic SciencesIR4 papers
10 papers · 1 filter
Wormhole Nucleation via Topological Surgery in Lorentzian Geometry
Alessandro Pisana, Barak Shoshany, Stathis Antoniou +2
We construct a model for the nucleation of a wormhole within a Lorentzian spacetime by employing techniques from topological surgery and Morse theory. In our framework, a 0-surgery…
OGRePy: An Object-Oriented General Relativity Package for Python
Barak Shoshany
OGRePy is a modern, open-source Python package designed to perform symbolic tensor calculations, with a particular focus on applications in general relativity. Built on an object-o…
Warp Drives and Closed Timelike Curves
Barak Shoshany, Ben Snodgrass
It is commonly accepted that superluminal travel may be used to facilitate time travel. This is a purely special-relativistic argument, using the fact that for observers in two fra…
Wormhole Time Machines and Multiple Histories
Barak Shoshany, Jared Wogan
In a previous paper, we showed that a class of time travel paradoxes which cannot be resolved using Novikov's self-consistency conjecture can be resolved by assuming the existence…
Time Travel Paradoxes and Multiple Histories
Jacob Hauser, Barak Shoshany
If time travel is possible, it seems to inevitably lead to paradoxes. These include consistency paradoxes, such as the famous grandfather paradox, and bootstrap paradoxes, where so…
Mean curvature flow and quasilocal mass for two-surfaces in Hamiltonian General Relativity
Stephen C. Anco
A family of quasilocal mass definitions that includes as special cases the Hawking mass and the Brown-York ``rest mass'' energy is derived for spacelike 2-surfaces in spacetime. Th…